For a First Order Elementary Reaction A $\rightarrow$ Products, the Rate of Reaction = K[A]

For a first order elementary reaction A $\rightarrow$ products, the rate of reaction = k[A]. Select all that apply.

A) .
$t_{1,2}=\frac{1}{2 k[A]_{0}}$
B) .
$t_{1/2}=\frac{\ln 2}{k}$
C) ln[A]_t = ln[A]₀ - kt .
D) A plot of [A] versus time, t, will give a straight-line graph.