According to the diagram, some of the physical flow travels from firms to the government. which of the following would be part of that flow? salaries for government employeessocial security checks paid each monthimport taxes paid by foreign businessescomputers for government offices

The answer is the last choice, computers for government offices.

i would think yes.

explanation:

because we have every natianlity in our country which makes us so diverse and unique. that's why in a lot of cities there are places like little italy, koreatown, chinatown.  

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."