When an auto executive who is upset because his teenager got suspended from school ends up nixing new design plans for no apparent reason, communication has been distorted by .

the right answer is a

im sorry i wish i can but try google

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; (false);