<prompt> Plasma Renin activity is lowered by which of the following group of drugs?Calcium channel blockersAlpha 2 agonistsACE inhibitorsAeriolar dilators  <response>: Plasma renin activity is increased by beta 1 stimulation, ACE inhibitorsDecreased by aliskerin, remikerin, clonidinecentral alpha 2 agonistsRef: KD Tripathi 7th ed, p 500 