Yasmin Co. can further process Product B to produce Product C. Product B is currently selling for $35 per pound and costs $26 per pound to produce. Product C would sell for $57 per pound and would require an additional cost of $24 per pound to produce. The differential cost of producing Product C is

a. $35 per pound

b. $24 per pound

c. $57 per pound

d. $26 per pound