The Supreme Court ruling on the civil rights cases of 1883... A: led to the passage of legal protections for African Americans.
B: led to unfair contracts between tenant farmers and landowners.
C: opened the door for legal segregation and discrimination in the US.
D: gave African Americans a legal basis for suing private businesses.

In 1884, the Supreme Court of the United States found that the Civil Rights Act of 1875 forbidding segregation in hotels, the railways and other public areas was unconstitutional.

Explanation:

B led to unfair contracts between tenant farmers and landowners

Explanation:

sorry if im wrong :

richard nixon led the investigation that resulted in alger hiss being convicted of prejury.

. political or economical policy that isolates a country from participating in international relationships. it has been suggested that the united states participates in isolationism because of its lack of involvement in particular wars or alliances.