The ketone shown is reduced with sodium borohydride to a mixture of alcohols (both cis and trans isomers). Counting configurational stereoisomers of the alcohol constitution, how many stereoisomers does the product have?

4-Methylcyclohexanone gives 4-methylcyclohexan-1-ol. The two ring carbons C-1 and C-4 are stereogenic only as a pair, giving cis and trans isomers, and the ring has a plane of symmetry so each is achiral. RDKit enumeration gives 2 stereoisomers.