Answer:
Executor y.
Explanation:
Executor y is a contract in which a person feels at rest, quit and even starts to proceed with the procedure. So that when Patricia was driving to her favorite station and tells the attendant to fill the tank. The attendant ask her what grades she wants to fill the tank.
She told him that the regular tank she wants to fill the tank. The contact between the tanker and Patricia was executor y because she always filled with regular tank and attendant understand that and filled the tank.