Which of these would be considered an independent agency of the Federal government? es )
A)
the Department of Defense
B)
the Department of Homeland Security
the General Accounting Office (GAO)
D)
the Federal Communications Commission (FCC)

A) the Department of Defense

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."

answer; scientific;