Correct Answer - C
Co enzymes are also organic compunds bur their association with the apoenzyme is only transient, usually occuring during the course of catalysis. Co-enzymes serve as co-factors in a number of different enzyme catalysed reaction. The essential chemical components of many coenzymes are vitaomins, e.g., coenzyme nicotinamide adenine dinucleotide (NAD) abd NADP contain the vitamin niacin.
