Select from options: Continue writing the next sentence.

People in stands watch as two bulls walk around in a bullfighting ring, other people walk around in the ring taking pictures. The bulls lock horns, and are aggressive toward one another. one bull

Available choices:
(I). walks away from the other one, and then quickly turns to reengage in the fight..
(II). runs off and is trampled by another..
(III). fall down and _start_peace sign is shown..
(IV). knocks the other man down to the ground..
Answer:
(I).