X Limited has 500 kg of material K in inventory for which it paid $2,000. The material is no longer in use in the company and could be sold for $1.50 per kg.X Limited is considering taking on a single special order which will require 800 kg of material K. The current purchase price of material K is $5 per kg.In the assessment of the relevant cost of the decision to accept the special order, the cost of material K is:
A sunk cost of $2,000
B. A sunk cost of $2,000 and an incremental cost of $1,500
C. An opportunity cost of $750 and an incremental cost of $1,500
D.An incremental cost of $4,000