The infamous "grandfather clauses" of the late 19th and early 20th centuries stated that

A)only the grandfathers of ex-slaves would be allowed to register to vote.
B) only grandfathers would be allowed to register to vote in coming elections.
C) all the grand children of registered voters after the Civil War would be allowed to vote.
D) only people whose grandfathers could vote before 1867 would be allowed to register to vote.