Carmen Co$.$ can further process Product J to produce Product D$.$ Product J is currently selling for $$20\mathrm{.}00$ per pound and costs $$15\mathrm{.}75$ per pound to produce. Product D would sell for $$38\mathrm{.}00$ per pound and would require an additional cost of $$8\mathrm{.}55$ per pound to produce.

The differential revenue of producing Product D is

a$.$ $$6\mathrm{.}25$ per pound

b$.$ $$18\mathrm{.}00$ per pound

c$.$ $$6\mathrm{.}75$ per pound

d$.$ $$22\mathrm{.}25$ per pound