One enzyme under study in a is peptidylglycine alpha-amidating monooxygenase (PAM). The molecular weight of monomeric PAM is 75,000 g/mol and the enzyme contains 2 copper atoms/enzyme molecule. If the PAM concentration is 6.2 mg/mL, what is the copper concentration? Assume no other sources of copper in the solution. A. 0.17 mM B. 6.2 microM C. 620 microM D. 3.4 mM E. 75 microM