The reaction of toluene with chlorine in the presence of light gives

Among the following,the set which represents aromatic species is:

Among the following,the aromatic compounds are:
$(A)$ Heptafulvene
$(B)$ Benzene
$(C)$ Cyclopentadienyl anion
$(D)$ Cyclopentadienyl cation
Choose the correct answer from the following options:

Which of the following species is expected to have maximum enthalpy in an electrophilic aromatic substitution reaction?

Identify the aromatic compound.

The total number of possible isomeric trimethyl benzene is