- A Progesterone
- B Estrogen
- C FSH
- D LH
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Answer:
D
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LH or Luteinizing hormone, a gonadotropin hormone, surges in the bloodstream on the 14th day of the 28-day menstrual cycle in females. It triggers the process of ovulation by stimulating the follicle to rupture and release the mature egg from the ovary. The surge of LH also causes an increase in progesterone levels, which prepares the uterus for a potential pregnancy. Estrogen and FSH are also involved in the menstrual cycle, but they do not reach their peak levels during ovulation.
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