Which of the Following Is True of the Hydration-Dehydration Equilibrium

Multiple Choice

Which of the following is true of the hydration-dehydration equilibrium that exists between alcohols and alkenes under aqueous acidic conditions?

A) It lies so far in one direction that it can only be used for the preparation of alcohols.
B) It lies so far in one direction that it can only be used for the preparation of alkenes.
C) Reaction conditions can be adjusted so that the equilibrium can be used to prepare either alcohols or alkenes in high yields.
D) It is not useful for the preparation of either alcohols or alkenes.