Final answer:
Copper is the cofactor for enzymes such as cytochrome oxidase, dopamine beta-hydroxylase, lysyl oxidase, and superoxide dismutase, playing a crucial role in various biological processes including cellular respiration and hemoglobin synthesis. The correct option is b.
Step-by-step explanation:
The cofactor for enzymes such as cytochrome oxidase, dopamine beta-hydroxylase, lysyl oxidase, and superoxide dismutase is Copper (b). Copper acts as a cofactor for several important enzymes, including cytochrome c oxidase, which is vital for cellular respiration. In addition, it is a constituent of enzymes like tyrosinase, ascorbic acid oxidase, and dopamine hydroxylase. This essential trace mineral is also involved in the synthesis of hemoglobin and acts as a cofactor in various redox reactions within the body.