The correct option is C CCl4,C6H6
A solvent that has zero dipole moment is known as non-polar solvent. Non-polar solvents contain bonds between atoms with similar electronegativities, such as carbon and hydrogen.
for example: Benzene, CCl4, Hexane, Diethyl ether (CH3CH2OCH2CH3), Toluene, Pentane etc.
hence option 'c' is correct