Which of the following statements about oxytocin is TRUE?

A)Target cells of oxytocin have receptors for the hormone in their nucleus.
B)Oxytocin is synthesized in the hypothalamus.
C)Oxytocin is secreted by the anterior pituitary gland.
D)Oxytocin's main function is to increase the rate of respiration.
E)Oxytocin keeps uterine smooth muscle from contracting,so it prolongs pregnancy.