In a Second Order Reaction

Multiple Choice

In a second order reaction:
I.the sum of the exponents in the rate law is equal to two.
II.at least one of the exponents in the rate law is a two.
III.the half-life is dependent on the initial concentration of the reactant species.
IV.the half-life is independent of the initial concentration of the reactant species.
V.k can be expressed as M^-2s^-1 or M^-2min^-1.

A) I and IV
B) II and IV
C) I,III,and V
D) I and III
E) II and III