Which constitutional change in the early twentieth century led to an increase in democratic participation in the United States?

Choose 1 answer:

(Choice A)

A

The method by which US senators are elected was changed


(Choice B)

B

States no longer could segregate public schools under the principle of "separate but equal"


(Choice C)

C

States’ use of poll taxes to keep African Americans from voting was disallowed


(Choice D)

D

The minimum legal voting age was reduced from 21 to 18