Dent ‘n’ Scratch Used Cars and Trucks employs 3 salesmen. Data for their sales last month are shown in this table: Based on last month’s data, Larry’s opportunity cost of selling a truck is selling:

Dent ‘n’ Scratch Used Cars and Trucks employs 3 salesmen. Data for their sales last month are shown in this table: Based on last month’s data, Larry’s opportunity cost of selling a truck is selling:
A.1/2 of a car.
B.1 car.
C.2 cars.
D.10 cars.
正确答案：2 cars.