Can someone please check my answer?

Question

7) When the Articles of the Confederation were written they showed Americans early distrust of:
a. The British
b. States having too much power
c. Strong national government
d. The President
My Answer~b

14) Starting in the 1870s, Jim Crow laws were enacted in Southern states as a means to:
a. Provide an education for formerly enslaved persons
b. Protect the voting rights of formerly enslaved persons
c. Enforce racial segregation
d. Ensure equal protection under the law
My Answer~c

15) In Plessy v. Ferguson (1896), the Supreme Court ruled that:
a. States may not secede from the Union
b. Racial segregation was constitutional
c. Slaves are property and may not be taken from their owners
d. All western territories should be open to slavery
My Answer~B

18) Many wealthy American industrialists of the late 19th century used the theory of Social Darwinism to:
a. Support the labor union movement
b. Justify monopolistic actions
c. Promote legislation establishing a minimum wage
d. Encourage charitable organizations to help the poor
My Answer~A or C I’m not too sure

Answer 1

7 and 18 are wrong.
14 and 15 are correct.

Answer 2

Ok thank you!!

Answer 3

You're welcome.