A Patient Who Wants to Use the Vaginal Sponge Method

A patient who wants to use the vaginal sponge method of contraception shows that she understands the appropriate usage when she makes which statement?

A) "I need to use a lubricant prior to insertion."
B) "I need to add spermicidal cream prior to intercourse."
C) "I need to moisten it with water prior to use."
D) "I need to leave it in no longer than 6 hours."