Partridge Co. can further process Product to produce Product D. Product J is currently selling for $21 per pound and costs $15.75 per pound to produce. Product D would sell for $37 per pound and would require an additional cost of $9.25 per pound to produce. What is the differential cost of producing Product D? a $6.50 per pound b. 59.25 per pound c. $15 per pound d. $5.25 per pound a. Option A b. Option B c. Option d. Option D