Which of the Following Statements About Voting Is LEAST Accurate

Which of the following statements about voting is LEAST accurate?

A) Initially, the national electorate consisted primarily of white, property-owning men.
B) Until the end of the Civil War, states could bar citizens from voting solely on the basis of their race.
C) Until 1920, states could bar citizens from voting solely on the basis of their sex.
D) The ending of property qualifications was not widespread until the early twentieth century.
E) Until 1971, states could block citizens from voting until they reached the age of 21.