$1$ What's the present value of a perpetuity of $1,000$ payable semiannua $/$ b $/$ c $/$ ally if money is worth $6\%$ compounded monthly and the first payment is due $3$ years from now?

$($a$)26,683\mathrm{.}33$

$($b$)28,344\mathrm{.}32$

$($c$)24,356\mathrm{.}54$

$($d$)29,092\mathrm{.}13$