Using anhydrous AlCl₃ as catalyst, which one of the following reaction produces ethylbenzene (PhEt)?
a. H₃C−CH₂OH+C₆H₆
b. H2C=CH₂+C₆H₆
c. CH₃−CH=CH₂+C₆H₆
d. H₃C−CH₃+C₆H₆