What is a true statement about the isomerases in phase I and phase II of glycolysis? (a) They both move a hydroxyl group from one part of the molecule to another. (b) They both reduce the molecule on one site but oxidize the molecule on another site. (c) There is only one isomerase in glycolysis, in phase II, the 'perfect enzyme'. (d) They both convert two different molecules of which only one can be used in subsequent reactions. (e) They both use the same coenzymes (a B-vitamin) to assist the reaction