"Moil" means to work hard or toil, so the opposite or antonym would be "Discourage," which implies dissuading from effort or work. Therefore, option (C) Discourage is the most suitable antonym in this context.

"Alleviate" means to make something more bearable or less severe, while "Aggravate" means to make something worse or more intense. Therefore, option (C) Aggravate is the most suitable antonym in this context.

The most appropriate antonym for "rebellion" is "loyalty." Rebellion involves resisting or opposing authority, while loyalty implies faithfulness and allegiance to a person, group, or cause. The other options— "uprising" (an act of resistance or rebellion), "sedition" (incitement to rebellion), and "allotment" (the action of allotting or assigning something)— are either synonyms or closely related to the concept of rebellion.

In the context of the sentence, "liberal" is used to describe policies that are open to change and progress. The opposite or antonym of "liberal" in this context is "conservative," which implies a preference for maintaining existing traditions and resisting change. Therefore, option (B) conservative is the most appropriate antonym.