The correct option is A cysts
Ovarian cysts are fluid filled sac-like or pouch-like structures present in or on the surface of the ovary. These are derived from the follicles that fail to degenerate after a menstrual cycle. Presence of ovarian cysts may be asymptomatic or characterised by abdominal pain, bloating, nausea, irregulat menstrual cycle or even infertility. The cysts can be surgically removed to treat their presence.