The Carbon-Carbon Bonds in Benzene Are

The carbon-carbon bonds in benzene are:

A) of equal length and are shorter than the double bond of ethene.
B) of equal length and are intermediate between a double bond and a single bond.
C) of unequal length and are alternately short and long around the ring.
D) due only to p orbital overlap.
E) of equal length and intermediate between the carbon-carbon bond lengths in ethene and ethyne.