How Is a Constitutional Amendment Ratified

How is a constitutional amendment ratified?

A) either by a majority of state legislatures or by special state conventions in a majority of the states-Consider This: Amending the U.S.Constitution in a very difficult process,where super majorities are required throughout.
B) either by three-fourths of state legislatures or by special state conventions in three-fourths of the states
C) either by a majority of state governors or by a majority of the U.S.Senate
D) either by three-fourths of state governors or by three-fourths of the U.S.Senate