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 ?
Answer: He may have drank too much blood too fast .None of the above choices .He may have fallen into a bed of fluffy pillows .He may have stuck his eye in a stack of needles .