Renin is an enzyme that generally catalyze the reaction by conversion of angiotensinogen to angiotensin I. The correct option is B.
Angiotensin is a chemical in your body that causes blood vessels to constrict. This constriction can raise your blood pressure and make your heart work harder.
Renin catalyzes the conversion of angiotensinogen, a plasma protein, into angiotensin I, a decapeptide (ten amino acids).
Angiotensin-converting enzyme which is present in the serum, converts angiotensin I into an octapeptide referred to as angiotensin II.
Thus, the correct option is B.
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