Compound X (C7H12) is optically active. Hydrogenation of compound X gives two isomeric 1,2...

Compound X (C7H12) is optically active. Hydrogenation of compound X gives two isomeric 1,2-dimethylcyclopentanes, one is optically active and the other is optically inactive. Of the following compounds, which is the only one that fits the data?

A)

B)

C)

D)

A) A

B) B

C) C

D) D