The reaction between 2-methyl-2-pentanol and HBr to yield 2-methyl-2-pentene is probably:
A) an E1-type reaction involving the protonated alcohol as the substrate.
B) an SN2-type reaction involving the protonated alcohol as the substrate.
C) an epoxidation reaction.
D) an E2-type reaction involving the protonated alcohol as the substrate.
E) an SN1-type reaction involving the protonated alcohol as the substrate.