One of the criticisms of Ronald Reagan's presidency was?
A) the pardoning of Richard Nixon
B) the Watergate scandal
C) too much deficit spending
D) the impeachment controversy

The correct answer is C. One of the criticisms of Ronald Reagan's presidency was too much deficit spending.

Explanation:

Ronald Reagan was the 40th president of the United States from 1981 to 1989. As president, Reagan faced a political shift. His neoclassical economic policy, "Reaganomics", sought to reduce the tax rate to create economic growth, control the money supply to reduce inflation, deregulate business and reduce public budgets. Inflation, which had become a major problem during the second half of the 1970s, was stifled early in Reagan's first period. But on the other hand, large spending on the upgrading, as well as the fact that Congress failed to implement promised cuts in other parts of the budget, led to the federal budget deficit exploding.

i would go with the last one

powers  are  denied  to the  national governmentin three distinct ways: some  powers, such as the  power  to levy duties on exports or prohibit the freedom of religion, speech, press, or assembly, are expressly  denied  to the  national government  in the  constitution.