Social Darwinism helped to justify ( )by suggesting that it is natural and acceptable for powerful and wealthy nations to colonize regions that are less powerful. ( ) nations used this theory to justify the practice of political, economic, and cultural colonialism.

i think it would be c.

hope i'm correct

explanation:

answer; (a) he was a u.s senator for 38 years;

b. the passage of the equal rights amendment  

explanation:

this mean that anything that someone else could do they could do

a u.s. citizen has to have lived in and been an american citizen for a year or more be for he or she can vote for presidential or country wide elections. they also have to register to vote. if the voting is for state representatives or issues, they have to have lived in that state for one month or more and meet the requirements for country wide elections.