The reaction of toluene with chlorine in the presence of iron and the absence of light yields ____________.

Option (d) is the answer.

In the presence of iron and in the absence of light, toluene reacts with chlorine to produce a mixture of 1-chloro-2-methylbenzene and 1-chloro-4-methylbenzene.
The methyl group is electrophilic aromatic substitution activating and ortho-para directing.