To solve this problem, we need to match the phases of the menstrual cycle in Column I with their corresponding descriptions in Column II. Let's analyze each phase:$\newline \bullet$a. Proliferative Phase:$\newline$ - The proliferative phase is part of the follicular phase of the menstrual cycle.$\newline$ - During this phase, the endometrial lining of the uterus thickens in preparation for potential implantation.$\newline$ - This matches with ii. Follicular Phase.$\newline \bullet$b. Secretory Phase:$\newline$