Answer: 1- a(cofactor)
2.-c(apoenzyme)
3-b(coenzyme)
Explanation:
Cofactor are non -protein molecules that catalyzes reaction,they increase the rate of chemical reaction. They can be organic or inorganic.
Coenzyme can be derived from vitamins,organic molecules, they facilitate chemical reaction and can be bounded strongly to protein while others are bounded loosely to protein.
Apoenzyme are inactive enzymes that cannot catalyze reaction they lacks cofactor.