Which of the following scenarios represents a way an amendment can become law? a. three-fourths of state legislatures propose an amendment, which is ratified by three-fourths of the states. b. two-thirds of state legislatures request a national convention to propose an amendment, which is ratified by two-thirds of the states. c. two-thirds of congress proposes an amendment, which is ratified by three-fourths of state legislatures. d. two-thirds of state conventions propose an amendment, which is ratified by three-fourths of state legislatures.