Carmen Co. can further process Product J to produce Product D. Product ) is currently selling for $20.00 per pound and costs $15.75 per pound to produce. Product D would sell for $38.00 per pound and would require an additional cost of $8.55 per pound to produce. The differential revenue of producing Product D is Oa. $18.00 per pound Ob. $6.25 per pound Oc. $22.25 per pound Od. $6.75 per pound