All of the men listed are able to get along with Lennie except (d) Curley.
While Candy is the only one of the men listed who has no conflicts with Lennie, George and Crooks resolve the ones that they do have. For instance, in the first chapter, George becomes angry with Lennie for carrying a mouse in his pocket and insists that Lennie get rid of it. Later, as they have their meager supper, they argue about the ketchup that George does not have; hurt, Lennie asks George if he wants him to go away.
Then, in Chapter 4, as Lennie stands in the doorway to Crooks's room, Crooks speaks "sharply" to the big man,
"You got no right to come in my room...Nobody got any right in here but me."
But, he comes to realize that Lennie is harmless and, like a child, just wants some company. "Come on in and set a while," he finally tells Lennie.
On the other hand, Curley never speaks in anything but a curt manner to the ranch workers. In fact, he is hostile as he stands in the doorway of the bunkhouse in Chapter 3 to ask if anyone has seen his wife. After he goes to the barn, he returns in frustration as the men tease him; however, when Curley sees Lennie smiling at him, he becomes angry, asking Lennie why he is laughing,
"No big son*****is gonna laugh at me. I'll show ya who's yella."
Curley punches Lennie in the face, injuring his eye, and punching repeatedly at him while Lennie holds his hands by his side. Finally, George instructs Lennie to not let Curley keep hitting him; so, Lennie grabs Curley's hand, crushing it, until nearly every bone is broken.