Which of the Following Is Not a Component of the Overall

Which of the following is not a component of the overall ejaculatory response?

A) arterioles supplying the penis dilate, causing the erectile tissue to fill with blood and the penis to become erect.
B) the smooth muscles of the prostate, reproductive ducts, and seminal vesicles contract, resulting in emission.
C) the sphincter at the neck of the bladder tightly closes.
D) semen is expelled from the penis by a series of rapid contractions of skeletal muscles at the base of the penis.
E) rhythmical contractions and accompanying systemic responses are associated with a pleasant sensation known as orgasm.