egg cells to be released until pregnancy Which statement best explains what a menstrual cycle is?
A. The menstrual cycle is a series of changes during which an egg matures and the ovaries are prepared for a possible pregnancy.
B. The menstrual cycle is a series of changes during which an egg matures and the uterus is prepared for a possible pregnancy.
C. The menstrual cycle is a series of changes during which sperm matures and the uterus is prepared for a possible pregnancy.
D. The menstrual cycle is a series of changes during which an egg matures and the testes is prepared for a possible pregnancy.​