Why does no state have less than three electoral votes ?

I don't know the answer to that but I do know how their decided.

In the Electoral College system, each state gets a certain number of electors based on its total number of representatives in Congress. Each elector casts one electoral vote following the general election; there are a total of 538 electoral votes. The candidate that gets more than half (270) wins the election.

Explanation:

do your own work

you really need to do your own work and stop cheating

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."