【单选题】

M: The taxi driver must have been speeding.

W: Well, not really. He crashed into the tree because he was trying not to hit a box that had fallen off the truck ahead of him.
Question: What do we learn about the taxi driver
A、He turned suddenly and ran into a tree.
B、He was hit by a fallen box from a truck.
C、He drove too fast and crashed into a truck.
D、He was trying to overtake the truck ahead of him.