Context: Boy I ca nt believe this happened ! If I could turn around and kick myself i would lol ! I ' ve done it a million times without anything happening until ... on 7/25 I was unloading the truck and coming down from the liftgate with a cart full of oxygen tanks . Somehow the cart kept going right off the gate and took me with it .

Question: Why did the narrator lose control of the cart with the tanks on it ?
Options:
0. None of the above choices .
1. The hot July sun caused the to become woozy .
2. The narrator slipped on the icy ground .
3. The tanks were heavy causing the cart pull away from the narrator .
Answer: 3