Answer
c.
Work Step by Step
Options a. is incorrect and option c. is correct. Both the ovarian and uterine cycles cease. The ovaries no longer have to prepare a follicle for maturation and ovulation, and the uterus does not have to shed its lining.
Option b. is incorrect. GnRH is needed for the ovarian and uterine cycles but is not needed for pregnancy.
Option d. is incorrect. Female secondary sex characteristics are maintained regardless of the existence of a pregnancy.
Option e. is incorrect because option b. is incorrect.
