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