Given the rate constants k2 = 0.5 s^-1 and k-2 = 0.1 s^-1, calculate the initial reaction velocity if the enzyme-substrate complex concentration is 0.2 M.

• A. 0.02 M/s
• B. 0.05 M/s
• C. 0.1 M/s
• D. 0.2 M/s

Answer: (C)