Each alcohol's alkene product when dehydrated are:
a) cyclohexanol when dehydrated = cyclohexene
b) 1-methylcyclohexanol when dehydrated = methylcyclohexene
c) 2-methylcyclohexanol when dehydrated = methylcyclohexene
d) 2,2-dimethylcyclohexanol when dehydrated = 1,2-methylcyclohexene
e) 1,2-cyclohexanediol when dehydrated = cyclohexanone