Trevor bought an antique desk. The net value of the desk is equal to the resale value of the desk minus what Trevor paid to buy it. Exponential function f, shown in the table, represents the net value of the antique desk, rounded to the nearest whole dollar, x years after Trevor purchased it. x 0 1 2 3 4 5
f(x) -37 -26 -13 0 15 32

Which statement is true?

A. During the first three years Trevor owned the desk, the resale value was less than the cost. Then it exceeded the cost after year 3.
B. During the first three years Trevor owned the desk, the resale value decreased. Then it increased after year 3.
C. During the first three years Trevor owned the desk, the resale value increased. Then it decreased after year 3.
D. During the first three years Trevor owned the desk, the resale value exceeded the cost. Then it was less than the cost after year 3.