Which of the following are not the effects of Parathyroid hormone $(PTH)$?
$(a)$ Stimulates the process of bone resorption
$(b)$ Decreases $Ca^{2+}$ level in blood
$(c)$ Reabsorption of $Ca^{2+}$ by renal tubules
$(d)$ Decreases the absorption of $Ca^{2+}$ from digested food
$(e)$ Increases metabolism of carbohydrates
Choose the most appropriate answer from the options given below:

• A
  $(b), (d)$ and $(e)$ only
• B
  $(a)$ and $(e)$ only
• C
  $(b)$ and $(c)$ only
• D
  $(a)$ and $(c)$ only