Camilla Agrees to Purchase a Car for $ 15,000

Camilla agrees to purchase a car for $ 15,000.Camilla and the seller agree that Camilla will return the following day with license plates to pick up the vehicle.In this case,the title shall pass:

A) when Camilla arrives with the license plates.
B) when Camilla takes the vehicle home.
C) at the time of purchase.
D) at the time of agreement.