Assertion: The proinsulin contains an extra stretch called as C-peptide
Reason :Insulin consists of two short polypeptide chans A & B that are linked together by disulphide bridges
A. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion
B. It both Assertion & Reason are True but Reason is not a correct explanation of the Assetion
C. If Assertion is True but the Reason is False
D. If both Assertion & Reason are false