Note : In the fol 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 is wrong statement and reason is correct statement.

E. Assertion and reason both are correct statements but reason does not explain assertion.

The D-L system corresponds to the configuration of the molecule and the spatial arrangement of its atoms around the chirality center. The D-L configuration is not to be confused with the d- l- naming which means dextrorotatory and levorotatory respectively. (+) and (-) notation corresponds to the optical activity of the substance, whether it rotates the plane polarized light clockwise (+) or counterclockwise (-). So, D(+) – glucose is dextrorotatory in nature but ‘D’ does not represent its dextrorotatory nature.