Which of the Following Is NOT True of Oral Contraceptives

Which of the following is NOT true of oral contraceptives?

A) Oral contraceptives have made a large impact on socioeconomic conditions in the United States.
B) Newer low-dose oral contraceptives are associated with lower risk for adverse cardiovascular effects.
C) Oral contraceptives are almost 100% effective.
D) All oral contraceptives are combinations of estrogen and progestins.
E) All of the above statements are true.