The highest effective annual rate that can be derived from an annual percentage rate of $9$ percent is computed as

Multiple Choice

$(1+\mathrm{.}09)$e

e$\mathrm{.}09\backslash$times $(1/\mathrm{.}09)$

e$\mathrm{.}091$

e $\backslash$times $(1+\mathrm{.}09)$

$\mathrm{.}09$e $1$