Addition of phenylmagnesium bromide to 4-tert-butylcyclohexanone gives two isomeric tertia...

Addition of phenylmagnesium bromide to 4-tert-butylcyclohexanone gives two isomeric tertiary alcohols as products. Both alcohols yield the same alkene when subjected to acid-catalyzed dehydration. Suggest reasonable structures for these two alcohols.