Jones Co$.$ can further process Product B to produce Product C$.$ Product B is currently selling for $$30$ per pound and costs $$28$ per pound to produce. Product C would sell for $$60$ per pound and would require an additional cost of $$24$ per pound to produce. What is the differential cost of producing Product C$?$

Group of answer choices

$$28$ per pound

$$60$ per pound

$$24$ per pound

$$30$ per pound