What is a coordinate? A symbol used on a map to represent a mountain, desert, or plain

A series of intersecting lines on a map representing latitude and longitude

One number in a set of numbers used to show the position of a point on a line, graph, or map

Solid lines used to outline the boundary of a country, state, or province on a map

One number in a set of numbers used to show the position of a point on a line, graph, or map.

mark me as brainliest if this helps to u

i am confused, what is the question? i can you out if you put it into more depth.

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."