The correct answer is D. Ovary.
Ovary is the female reproductive organ where fertilization takes place.
The hormones which are found in the ovaries are, luteinising hormone and follicle stimulating hormone. They control the functioning of of sexual characteristics and reproductive.
They stimulates the ovary so as to produce progesterone and estrogen. The main function of the pituitary gland is regulation of endocrine gland.
Examples of hormones which are produced by pituitary gland include luteinising hormones, adrenocorticotropic hormone, and growth hormone.