OLD car; she must have a purpose for having it which relates to option 3) that she WANTED to travel her office with comfort.So option C will FOLLOW option A.Option B starts with But which means it shows contradiction but it has nothing to do with sentence C.Eventually, we can say sentence D follows C and as sentence B contradicts with D, it follows B. So the correct order is ACDB.The correct sequence is:A: When Rama was 22, she BOUGHT a second-hand car.C: She wanted to travel to and from her office comfortably.D: It worked well for a few years.B: But now it is costing her a lot for repairs.