The activity of formation of milk is regulated by the activity of $A$. While the ejection of milk is controlled by $B$ hormone. Here,$A$ and $B$ refers to:

  • A
    $A$-oxytocin; $B$-prolactin
  • B
    $A$-prolactin; $B$-oxytocin
  • C
    $A$-prolactin; $B$-progesterone
  • D
    $A$-oxytocin; $B$-progesterone

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