A 20-year-old sexually active female presents with right lower quadrant abdominal pain and is hypotensive. She states the pain came on acutely and is severe. She has not had her period for two months. The most likely clinical diagnosis would be:

A) ruptured ectopic pregnancy.
B) spontaneous abortion.
C) ruptured ovarian cyst.
D) torsion of an ovarian cyst.

A