The carbon-carbon (C-C) bond length in benzene is:

1.34 A

1.20 A

1.54 A

1.39 A

Explanation

The carbon-carbon (C-C) bond length in benzene is 1.39 Å (angstroms).

This bond length is intermediate between a single bond (typically around 1.54 Å) and a double bond (typically around 1.34 Å) due to the resonance structure of benzene

Where the electrons are delocalized over the six carbon atoms.

This delocalization results in a uniform bond length throughout the benzene ring.