Final answer:
Progesterone levels rise during the luteal phase of the ovarian cycle and the secretory phase of the uterine cycle.
Step-by-step explanation:
The correct statement about the menstrual cycle is: a. Progesterone levels rise during the luteal phase of the ovarian cycle and the secretory phase of the uterine cycle. Progesterone is a hormone that is primarily secreted by the corpus luteum during the luteal phase of the menstrual cycle. It helps to prepare the uterus for potential implantation of a fertilized egg.