African americans were let go from the factory jobs when servicemen returned home from the war

I would say 3 is the answer. There was still plenty of racial tension Stateside; in fact, as AAs began serving in the military and coming back home, their renewed cries for equality began the early roots of the final stages of the Civil Rights Movement.

They also began protesting more actively because those who stayed Stateside and took up jobs vacated by servicemen felt angered at being forced to give up their jobs at the end of the war.

I hope I answer your question.

3

Explanation:

Althoguh thei high rate of prejudice americans were forced to accep black people in the factories because the white ones were in the war, not long after black men had to be accepted and go war as well. When war was over all guys had to be back and life had to move on, because of the above mentioned prejudice  whit people got their jobs back and theblack ones had to leave fo them. Living a hard live black people had to be unemployed again and start fighting for their rights again.

frederick william of brandenburg-prussia trained his son, frederick, to be a hardy soldier. but frederick disliked rifle shooting and horseback riding. unlike his father, he was interested in french literature. he enjoyed poetry and music and, like some others of the enlightenment, he scoffed at religion. his father thought him soft, frivolous and unmindful of his duties. and when frederick refused to put his signature on a right to succession, for a few moments his father strangled him.

true

explanation: