Answer:
The stations vary in terms of the services that they provide.
Step-by-step explanation:
The owners of gas stations in Bigtown are trying to set up a cartel that will raise the price of gasoline. The stations vary in terms of the services that they provide, therefore, this fact will increase the chances that the cartel will fail due to cheating by the owners. Each and every gas station has its own different services which they offer, moreover, they serve different customer's needs and wants under different customer segments, consequently, it will be very difficult for the cartel to bring all of the gas stations under one finalized terms and conditions which undoubtedly will increase the chances that cartel's strategy will more likely be failed and impossible to implement.