Two parcels of land are exchanged. The first parcel is the NW of the SE of Section 21 and is valued at $850 per acre. The second parcel is the S of the NE of Section 22 and is valued at $650 per acre. What is the difference in value between the exchanged properties?

Select one:

a. $8,800

b. $8,000

c. $18,000

d. $12,000