Which one influences the activity of the kidney?

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 $ANP$.

What is the primary function of $ADH$?

$JGA$ (Juxta Glomerular Apparatus),a sensitive region,which regulates the glomerular filtration rate,is present near the:

An increase in blood flow to the atria of the heart can cause the release of $A$, which causes $B$ and thereby decreases the blood pressure. The $ANF$ mechanism therefore acts as a check on $C$. Here, $A-C$ refers to:

An increase in blood pressure causes the release of: