Option (c) is the correct answer because peroxidase is the enzyme that catalyzes the breakdown of hydrogen peroxide to water and oxygen; haem is the prosthetic group of this enzyme.

Option (a) and (b) are incorrect because co-enzyme nicotinamide adenine dinucleotide (NAD) and NADP contain the vitamin niacin.

Option (d) is incorrect because zinc is a co-factor for the proteolytic enzyme carboxypeptidase.