It is estimated that construction of this pool area will cost $75,000. A large corporation donated $35,000 toward the construction of the pool, and an additional $2,000 was earned during a local fund-raising activity. If 20 local businesses agree to donate the rest of the money, which of the following represents the average amount each business will have to contribute?
a. $1,900
b. $1,800
c. $1,700
d. $1,600