Yasmin Co Can Further Process Product B to Produce Product C

Yasmin Co. can further process Product B to produce Product C. Product B is currently selling for $30 per pound and costs $28 per pound to produce. Product C would sell for $55 per pound and would require an additional cost of $31 per pound to produce. The differential cost of producing Product C is

A) $30 per pound
B) $31 per pound
C) $28 per pound
D) $55 per pound