If an Enzyme Has a V_max of 15 MM/min, What

Multiple Choice

If an enzyme has a V_max of 15 mM/min, what is the velocity if the substrate is present at 1/5 of the K_m?

A) 12 mM/min
B) 6 mM/min
C) 3 mM/min
D) 2.5 mM/min
E) cannot be determined from given information