Hemingway employs a direct, unadorned style of writing in order to:
A.remove all uncertainty about what he is trying to say.
b. allow the reader to draw his or her own conclusions.
c. deemphasize the importance of language.
d. reduce the story to its essentials.
I'm not sure that there's a single correct answer in that multiple choice question about Ernest Hemingway's writing style, but I think that I can safely rule out two answers.
"A. Remove all uncertainty.." is not a plausible answer. No self-respected modernist would try to use language without uncertainty, and Hemingway definitely presents uncertainty in a number of his works. For example, it's never completely clear what the topic of discussion is in the short story "Hills Like White Elephants: or what the nature of Jake Barnes' wound is in The Sun Also Rises. The reader gets a pretty good idea, sure, but the characters and narrator tend to talk around subjects rather than about them, a tendency that creates rather than removes uncertainty.
"C. Deemphasize the importance of language..." is equally impossible as an answer. Like all serious writers, Hemingway was closely attuned to language and often worked very long and hard to get the right word for what he meant. The drafts of his manuscripts are full of extensive revisions and rewritings of his material.
Of the remaining two answers, B and D, I think that I prefer the answer B. Or D! I really can't decide which seems most true. I also don't even think it's true that Hemingway always uses a "direct, unadorned style of writing." This characterization does not fit his very long and rich descriptions of the Spanish landscape in The Sun Also Rises, for example.
Reading literature is a subjective activity, and each reader brings a different set of skills and experiences to a story. From a personal point of view I would have to say that all four of those statements reflect my own experiences of Hemingway's writings - particularly his short stories. For example, in the wonderful story 'The End of Something,' I would say that the writing is very minimal and stripped of unecessary decoration - there is no confusion about where Nick and Marjorie are, yet the author still leaves room for clues and mystique. This allows for great enjoyment or fun on the part of the reader, as he/she is able to concentrate on the dialog in order to try to work out what's going on in the action. It also means that each can interpret the outcome in a different way. My own perception was that Marjorie got fed up eventually, of playing Nick's moody games and left him with a buddy he didn't seem to like either. Hemingway emphasised dialog and mood over the language of the setting and managed,while still being descriptive to pare the story right down to spotlight the relationship.
Earnest Hemingway was considered to be a man's man. He was athletic and engaged in hunting and other activities performed by men in his day. He wrote with a direct and forward style to match his own lifestyle. Hemingway wrote what he knew and presented his literature in the manner that best suited his abilities. He often felt that too much literature was presented as flowery and difficult to follow. He wanted people to be able to pick up his texts and be able to understand what they were reading.
He also liked a little mystery. He included writings that had a twist or allowed the reader to create his or her own ending. He liked to make people think. Language to Hemingway was no more than an instrument to get a word across. If it was too formal he decided that it made the reader concentrate on the words not the story. By providing the essentials in the story and not excessive wordy, he was able to allow the reader to focus on the important elements.