Ahngram Corp. has 1,000 defective units of a product that cost $2.10 per unit in direct costs and $5.60 per unit in indirect cost when produced last year. The units can be sold as scrap for $3.10 per unit or reworked at an additional cost of $1.60 and sold at full price of $9.30. The incremental net income (loss) from the choice of reworking the units would be:
A. $4,600.
B. $0.
C. $1,600.
D. $7,700.
E. $1,600.