Final answer:
The uterus is the female reproductive organ responsible for cyclic menstruation.
Step-by-step explanation:
option a is correct
The female reproductive organ responsible for cyclic menstruation is the uterus. The uterus is a hollow, muscular organ located in the pelvis, between the bladder and the rectum.
It is where a fertilized egg implants and develops into a fetus during pregnancy, and if pregnancy doesn't occur, the lining of the uterus is shed through menstruation.