Symptoms of menstrual pain are caused by

Symptoms of menstrual pain are caused by
  a. prostaglandins causing smooth muscle
  contraction and release during the period.
  b. the hormone aldosterone causing more
  absorption of sodium.
  c. lack of exercise causing hormonal changes.
  d. lack of sunlight limiting hormone production.
  e. all of these.

Question 2

Symptoms of PMS are caused by
  a. uterine lining separation and expulsion during
  the period.
  b. the hormone aldosterone causing more
  absorption of sodium.
  c. lack of exercise causing hormonal changes.
  d. lack of sunlight limiting hormone production.
  e. all of these.