The Reaction of 4-Methylcyclohexanone With $\mathrm{CH}_{3} \mathrm{MgBr}$ Followed by Neutralization Gives Two Alcohols

The reaction of 4-methylcyclohexanone with $\mathrm{CH}_{3} \mathrm{MgBr}$ followed by neutralization gives two alcohols. These two alcohols are

A) constitutional isomers.
B) enantiomers formed in equal amounts.
C) enantiomers formed in unequal amounts.
D) diastereomers.