In a busy, modern shipping port, which job might a specialized worker perform to increase trade?
a. off-loading cargo by hand
b. driving yard tractors
c. stacking wooden barrels by hand
d. running a gantry crane

idk if you found them already or not but you probably did but the one closer to sea level is raleigh.

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; to save lives and protect property;

answer; jacques cartier;