Assertion (A) All naturally occurring `alpha`-aminoacids except glycine are optically active.
Reason (R) Most naturally occurring amino acids have L-configuration.

Options

A. Assertion and reason both are correct statements and reason explains the assertion.
B. Both assertion and reason are wrong statements.
C. Assertion is correct statement and reason is wrong statement.
D. Assertion and reason both are correct statements but reason does not explain assertion.

Answer

D

Explanation

Correct explanation. All naturally occurring `alpha`-amino acids except glycine have a chiral carbon in their molecules.