Which of the Following Is True of the Diaphragm and the Sponge

Which of the following is true of the diaphragm and the sponge?

A) They cannot be used in conjunction with oral contraceptives.
B) They inhibit the process of ovulation by releasing progesterone.
C) They can lead to toxic shock syndrome if not removed on time.
D) They are ineffective if used in conjunction with spermicidal foam.