The monthly effective discount rate is $3\%.$ Calculate the force of interest.

Question $1$ options:

A$)$

$29\mathrm{.}9\%$

B$)$

$36\mathrm{.}0\%$

C$)$

$36\mathrm{.}6\%$

D$)$

$42\mathrm{.}6\%$

E$)$

$43\mathrm{.}3\%$