Answer:
is A.
Explanation:
a.
Segregation was an informal policy throughout the South until the Jim Crow laws were passed.
C.) Great Purge
Also known as the great terro, the great purge was a political campaign that Stalin brought upon everysingli one he considered a threat. Executing over 750,000 sovietic citizens and communist party members, took place between 1936 and 1938.
Railroads were in1862
And it still getting made today
I think it would have been B, But I am not totally sure.