Stage Two of Sensate Focus Involves Genital Pleasuring but Prohibits

Stage two of sensate focus involves genital pleasuring but prohibits intercourse or orgasm.What is the main purpose of this stage?

A) to provide increased anticipation of intercourse
B) to re-establish arousal
C) to provide a break from the "usual" way that the couple has sex
D) to allow each individual to communicate his or her desires to the partner