Context: His left arm still dangled in the water , and the thing- whatever it was he \'d mistaken for a fish , was still holding it . The light bounced in ripples over its body , illuminating it , but it was n\'t for another long moment that Atobe saw the tail . " Thank you , " Atobe mouthed to it and its eyes flicked , watching his face , trying to understand . It ... he , whistled and tugged gently on his arm .
Question: What may be the reason the animal held on to his arm ?
Option 0: None of the above choices .
Option 1: It might have wanted to give him a high five .
Option 2: It might have though his arm was his father .
Option 3: It might have wanted him to pet in in the water .
Answer: 0