Calculate the variance of the present value of a $20-$year temporary anmuity of Ksh $5,000$ p$.$a$.,$ payable at the end of each year, issued to a life aged $44$ exact. Mortality follows AM$92$ Ultimate, and interest is $4\%$ pa effective.

Select one:

$58517886\mathrm{.}58$

$56739118\mathrm{.}71$

$59406775\mathrm{.}47$

$55628007\mathrm{.}82$

$57628997\mathrm{.}69$