Which of these human activities most contributes to soil erosion? A. biking on forest trails
B. boating on a lake
C. cutting down trees
D. fertilizing a lawn

omg wow lol

explanation:

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' recieve unequal treatment as a group;

answer; ancient times;