C. is small in size and number of responsibilities
Explanation:
The Republicans in US incline towards a form of government that has very limited functions. They advocate the practice of limited government and federalism and opposes government expansion based on socialism.
Republicans often oppose new social programs and expenditures because they believe that the expenses on these programs are incurred from tax payers' pockets. Thus, that is why they advocate for a free market.
Therefore, Republicans and Conservatives believe that a government should be small in size and number of responsibilities because they believe that unnecessary social programs lead to expansion of government's budget.
