The rate law for a hypothetical reaction is rate = k [A][B]. If the concentrations of A and B are both 0.020 moles per liter and k = 1.3 × 10-1 M-1s-1, what is the reaction rate?

A4.0 × 103 M

B1.3 × 10-1 M-1s-1

C5.2 × 10-5 Ms-1

D5.2 × 105 Ms-1