For a standard Proctor compaction test, a sample was determined to have a total unit weight of $118\mathrm{.}0$ pcf and a moisture content of $13\%.$ What is the dry unit weight of the this sample:

a$)116\mathrm{.}5$ pcf

b$)69\mathrm{.}5$ pcf

c$)133\mathrm{.}3$ pcf

d$)92\mathrm{.}4$ pcf

$($c$)104\mathrm{.}4$ pcf