Context: I ' ve got it ! I am lifting it , lifting it , almost putting it on the island , almost there , and ... . The cardboard bends AGAIN and now the entire thing falls to the floor AGAIN , but this time from a higher point in the air , so the velocity of the fall smashes it completely .

Question: Why did the structure collapse ?
Options:
0. None of the above choices .
1. Because the cardboard was in the air .
2. Because the cardboard was wet .
3. Because the spine bent .
Answer: 0