You own a tract of trees and are deciding whether to harvest them now or next year. If you harvest them now, you can invest the proceeds and get a return of 5% on your investment. What should you do?? a. ?Let the trees grow as long as their dollar worth increases by less than 5% b. ?Cut down the trees, and sell them c. ?Let the trees grow d. ?Let the trees grow as long as their dollar worth increases by more than 5%