Given the rate constants k1 = 2 M^-1s^-1, k-1 = 1 s^-1, and k2 = 0.5 s^-1, calculate the Km for the enzyme under steady state conditions.

• A. 0.25 M
• B. 0.75 M
• C. 1.5 M
• D. 2.5 M

Answer: (B)