Hydride reduction (with LiAlH4 or NaBH4) of each of the following ketones has been reporte...

Hydride reduction (with LiAlH4 or NaBH4) of each of the following ketones has been reported in the chemical literature and gives a mixture of two diastereomeric alcohols in each case. Give the structures of both alcohol products for each ketone.

(a) (S)-3-Phenyl-2-butanone

(b) 4-tert-Butylcyclohexanone

(c) 

(d)