The view of a nineteenth century liberal is best represented by the belief that
A. Wealth should be shared equally among all
B. Class difference should be preserved at all costs
C. Individuals should be free to pursure their interests
D. Government regulation is necessary to protect workers
The best answer to this is C.
In the 19th century, the meaning of the word "liberal" was not really the same as its meaning today. Today, a liberal would be someone who believes things like D. A liberal is a person who believes in more government intervention into the economy.
By contrast, a liberal in the 19th century was someone like Adam Smith who believed in more free trade and less government regulation. A liberal wanted people to be free to pursue their economic interests instead of having to follow government rules about, for example, what could be produced and where it could be sold.