Yasmin Co. can further process Product B to produce Product C. Product B is currently selling for $32 per pound and costs $28 per pound to produce. Product C would sell for $59 per pound and would require an additional cost of $23 per pound to produce. What is the differential cost of producing Product C?

a.$23 per pound

b.$59 per pound

c.$32 per pound

d.$28 per pound