This is c because i can telll
Synonyms may help people to figure out meanings by known words. If a word's meaning is unknown, atleast one of the synonyms must be a known word. So, the meaning of the unknown word can be explained by the meaning of the known synonym, as a synonym is an alternative word with the same meaning.
From the late 1700s to the time around the civil war
The answer is A. friendly but selfish
