Identify all the Amendments with its correct Historic Root. a) 15th - Because of

Identify all the Amendments with its correct Historic Root.
a) 15th - Because of this amendment, citizens of Washington D.C. were able to vote in federal elections.
b) 19th - Susan B. Anthony was a suffragist for women.
c) 24th - Southern states used poll taxes and literacy test to limit the black vote.
d) 26th - In the wake of protests over the Korean War, it became clear that 18 year-olds should have the right to vote.