Which two bodies of water are connected by the geographic feature shown on the above map? a. the red sea and the mediterranean sea b. the persian gulf and the red sea c. the red sea and the indian ocean d. the indian ocean and the persian gulf

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."