Hydrogenation of the compound

with `H_(2)` in the presence of Lindle catayst gives

Options

A. an optically inactive compound
B. an optically active compound
C. a diasteromeric mixture
D. a racemic mixture

Answer

A

Explanation

In the above compound `C-4` is chiral, its chirality is lost during the syn addition of `H_(2)` in the presence of Lindlar's catayst. Due to the presence of plane of symmetry, the product is optically inactive.