Question Detail
Question
Which phase of the menstrual cycle is characterized by the thickening of the endometrial lining?
Correct Answer
Option A is the correct answer.
Detailed Explanation
During the follicular phase (which overlaps with the proliferative phase of the uterus), rising estrogen levels stimulate the repair and proliferation of the endometrial lining.
Hint
This phase occurs before ovulation, under the influence of estrogen from developing follicles.