Describe the First Step of a Specific-Base-Catalyzed Dehydration of a Hydrate

Describe the first step of a specific-base-catalyzed dehydration of a hydrate.

A) base abstracts a proton, electron pair from O-H bond goes to oxygen
B) negative charge from oxygen forms double bond, hydroxide departs as leaving group
C) base abstracts a proton, electron pair from O-H bond forms a double bond, hydroxide departs as leaving group
D) hydroxide departs as leaving group, then negative charge from oxygen forms a double bond
E) electron pair from O-H bond forms a double bond, base abstracts a proton