Context: Rin immediately looked at him . Manji 's skin split much further , more than doubling the length of the rent in his belly , and blood bubbled out in an alarming rush . His eye rolled back ; he slumped and passed out .

Question: What may have caused blood to bubble out ?
Options:
0. He may have drank too much blood too fast .
1. None of the above choices .
2. He may have fallen into a bed of fluffy pillows .
3. He may have stuck his eye in a stack of needles .
Answer: 1