Which Statement Best Describes the Distinction Between a Hydration and a Dehydration

Multiple Choice

Which statement best describes the distinction between a hydration and a dehydration reaction?

A) Hydration requires a carbonyl group and dehydration does not.
B) Hydration is the addition of water and dehydration is the loss of water.
C) Hydration results in breaking bonds and dehydration creates bonds.
D) Hydration is an oxidation and dehydration is a reduction.
E) Hydration and dehydration actually describe the same process.