How Does Acute Unilateral Renal Obstruction Predispose People to Hypertension

How does acute unilateral renal obstruction predispose people to hypertension?

A) The hydronephrosis that develops prevents any further blood from entering the kidneys, which results in an increase in the systemic blood volume.
B) The reduced perfusion of the affected kidney activates the renin-angiotensin-aldosterone system, which causes constriction of peripheral arterioles.
C) The pain resulting from the renal obstruction stimulates the autonomic nervous system, causing vasoconstriction of peripheral arterioles.
D) The renal obstruction prevents the usual loss of sodium through the urine, causing retention of sodium and water, which increases blood volume.