The answer is all of the above
Colonial states begin in 1600s.
Beofre 1971, the noone under 21 years of age were allowed to vote, so option A is correct
women obtain voting rights in 1920, before that they're not allowed, so option B is correct.
C. Poll taxes has been banned after 1910,
The right to vote for freed slavesobtained in 1870, option D is correct
