In the Early 1990s,before Pay at the Pump Was an Option,a

In the early 1990s,before pay at the pump was an option,a gas station decides to force people to pre-pay due to drive-offs.The opportunity cost of this decision may include:

A) the value of the gas that is no longer stolen by people who drove off.
B) not having to look outside for people waving at you to turn on the pump.
C) lost revenue when people under estimate what they think their gas tanks will hold in order to avoid going back into the store to get change from overpayment.
D) a loss of snack sales because people decide to come into the store to pay for gas before pumping versus after pumping their gas.