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 .

Choose your answer from:
[A]. He may have drank too much blood too fast .;
[B]. None of the above choices .;
[C]. He may have fallen into a bed of fluffy pillows .;
[D]. He may have stuck his eye in a stack of needles .;
Answer the following question: What may have caused blood to bubble out ?
[B].