Which of the Following Is a Consequence of the Institutional

Which of the following is a consequence of the institutional nature of the US presidency?

A) All presidents want to expand and guard their institutional power base.
B) Presidents frequently defer to Congress when there is ambiguity over presidential authority.
C) Liberal presidents are more likely to expand presidential power while conservative presidents are more likely to guard it.
D) Presidents are reluctant to infer new powers from the language of the Constitution.