What did martin luther mean when he said "salvation not works, gets you to heaven"

He advocated peaceful struggle based on love of neighbor as a way of building a better world based on equal social and economic rights.

In this sentence he refers to religion, and to racism the salvation of slaves would lead them to heaven

the answer is b: the religion they practice.

here's why:

there were many different native american tribes and those with similar characteristics formed a main tribe or nation. each had its own language, religion and customs.