What hormone stimulates ovulation?

a. LH

b. FSH

c. estrogen

d. progesterone

LH and FSH.

Explanation:

Ovulation may be defined as the process of release of one egg from the ovary each month. This ovulation generally occurs at the 15th or 16th day of the menstrual cycle.

The hormone that triggers ovulation is luteinizing hormone and follicle stimulating hormone. These hormones at the highest peak at the time of ovulation.

Thus, the correct answer is option (a) and (b).