Select the correct option with respect to the following statements:
$(a)$ Angiotensin $II$ constricts arterioles in the kidney to reduce blood flow and decreases blood pressure when blood flow to the afferent arteriole decreases.
$(b)$ Angiotensin $II$ stimulates the adrenal cortex to release aldosterone for more absorption of $Na^+$ and $Cl^-$ ions in the $DCT$.
$(c)$ Blood osmolarity varies with the secretion of aldosterone and $ANP$.

• A
  Both statement $(b)$ and $(c)$ are correct.
• B
  Both statement $(a)$ and $(c)$ are correct.
• C
  Statement $(a)$ is correct.
• D
  Statement $(c)$ is incorrect.