If the Amount of Progesterone in the Blood Remained at the Level

Multiple Choice

If the amount of progesterone in the blood remained at the level seen in the middle of the luteal phase for 6 straight months,what would the effect be on menstruation?

A) Menstruation would not occur.
B) Menstruation would occur consistently for the entire 6 months.
C) Menstruation would occur at the typical intervals,but would be heavier than before.
D) Menstruation would occur at the typical intervals,but would be lighter than before.
E) There would be no effect on menstruation.