The establishment clause of the first amendment has often been interpreted to mean a)separation of church a d state
b)legal formation of labor unions
c)rules for selecting grand jury members
d)protection from slander and libel

A. Separation of church and state

Explanation: The first amendment states that no law can be made that establishes religion and that Congress/the US government can't prohibit certain religions, freedom of speech, assembly, or petition the government. Out of all the answers, A seems the most correct.

the answer would be c

disease was the number one killer of native peoples. they had had little exposure to the diseases of europe. this led to some villages being almost completely wiped out and some tribes destroyed.