The First-Order Decomposition, A $\rarr$ Products, Has a Rate Constant of 0

Multiple Choice

The first-order decomposition, A $\rarr$ products, has a rate constant of 0.150 s^-1. Starting with [A]_o = 0.350 M, how much time is required for [A]_t = 0.125 M

A) 6.86 s
B) 2.98 s
C) 34 s
D) 1.50 s
E) 4.62 s