If this question has the same choices as the ones posted before, then the answer would be the first option, which is:
Sal knows the identity of the sole survivor of the crash.
--> At the hospital, Grams gave Sal money and the car keys. She was told to do what she wanted to do because Grams is staying at the hospital.
Sal drove her way to the windy road of Lewiston. It was quite reckless to drive on a narrow road. When he pulled out, another car pulled out and a man stepped out asking Sal who's with her. The man pointed out a metallic thing hanging on the cliff, which was a bus.. A bus which her mother was one of the passengers and the only survivor of the catastrophe. She knows that her mother was badly injured and was in the hospital, unconsciously lying on her bed.
