Concerning the Decomposition of A, A $\rarr$ Products, Which of the Following Methods Could Be Used to the Following

Multiple Choice

Concerning the decomposition of A, A $\rarr$ products, which of the following methods could be used to determine the order of the reaction with respect to A
I. Plot [A] vs time, ln[A] vs time, and 1/[A] vs time and identify which plot yields a straight line.
II. Vary the concentration of A and note by what factor the rate changes.
III. Identify if successive half lives of A double, halve, or stay constant.

A) I only
B) II only
C) III only
D) I and III
E) I, II, and III