Which Statement(s)is/are True of Acid-Catalyzed Alcohol Dehydrations

Multiple Choice

Which statement(s) is/are true of acid-catalyzed alcohol dehydrations?

A) Protonation of the alcohol is a fast step.
B) Formation of a carbocation from the protonated alcohol is a slow step.
C) Rearrangements of less stable carbocations to more stable carbocations are common.
D) Loss of a proton by the carbocation is a fast step.
E) All of the above