Yasmin Co$.$ can further process Product B to produce Product C$.$ Product B is currently selling for $$32$ per pound and costs $$29$ per pound to produce. Product C would sell for $$58$ per pound and would require an additional cost of $$24$ per pound to produce. What is the differential cost of producing Product C$?$

a$.$ $$29$ per pound

b$.$ $$24$ per pound

c$.$ $$58$ per pound

d$.$ $$32$ per pound