Female Athletes Who Have Very Rigorous Training Schedules Coupled with Very

Female athletes who have very rigorous training schedules coupled with very low calorie diets often do not have normal menstrual cycles.Why?

A) Inadequate food intake leads to a decrease in secretion of GnRH.
B) Development of skeletal muscles leads to testosterone production.
C) The ovaries loose blood supply and degenerate.
D) The levels of testosterone decrease below the needed level for ovulation.
E) Both inadequate food intake leads to a decrease in secretion of GnRH and the levels of testosterone decrease below the needed level for ovulation occur.