Match the source gland with its respective hormone and function and select the correct option.

• A
  $A$. Anterior pituitary $\to$ Oxytocin $\to$ Contraction of uterus muscles during child birth
• B
  $B$. Posterior pituitary $\to$ Vasopressin $\to$ Stimulates reabsorption of water in the distal tubules in the nephron
• C
  $C$. Corpus luteum $\to$ Estrogen $\to$ Supports pregnancy
• D
  $D$. Thyroid $\to$ Thyroxine $\to$ Regulates blood calcium level