The president have power over what branch

The Executive Branch

Explanation:

Executive Branch

Explanation:

In addition to the office of Head of State and Commander-in-Chief of the military the President of the United States is entrusted with the authority of the executive branch.

because he had a big bear belly

d. i assume the underlined word is "role." reformat if it isn't.

explanation:

role is closest to part because when replacing words, "playing a vital decision," "playing a vital activity," and "playing a vital dollar" don't make logical sense. the only meaningful choice is "playing a vital part."

this fits one of merriam-webster's definitions of role: "a function or part performed especially in a particular operation or process."