Which factor contributed most to Phyllis Schlafly's position on the Equal Rights Amendment (ERA)?

O A. The potential for the ERA to reshape the traditional gender roles of
American Society
B. The likelihood of a significant increase in government regulation
needed to put the ERA into effect
C. The heavy economic costs that would be imposed on states to
enforce the ERA
D. The possibility that the ERA would undo some of the gains made
by women's rights activists