Carmen Co. can further process Product J to produce Product D. Product J is currently selling for $22.65 per pound and costs $16.35 per pound to produce. Product D would sell for $42.10 per pound and would require an additional cost of $11.05 per pound to produce. What is the differential cost of producing Product D?

$13.26 per pound

$11.05 per pound

$6.63 per pound

$8.84 per pound