Which document was the first example of self government in british colonies? A. the manga carta
B. Common sense
C. The mayflower compact
D. The english bill of rights

C. The mayflower compact

Explanation:

The mayflower compact was a set of agreement that created by the settlers of Plymouth Colony. They made this agreement when they're still on the Mayflower ships heading out to the colonial territory.

In that agreement, they're agree that they will not run their settlement based on the system created by British government.

They agree that their settlement will be run on a representative democracy, where the citizens can  have the power to be involved in the government by selecting a government representatives.

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."