Quiz: Which Japanese word is correct?

This is an elementary school classroom. The teacher is asking questions to the children. The teacher takes turns asking each child what kind of work their parents do. The following is a conversation when a teacher asked a boy a question. What is the most appropriate Japanese word for (　　　)?

せんせい : あなたの　おとうさんのしごとは　なんですか？

しょうがく生 : （　　　）のおとうさんは　バスのうんてんしゅです

1 : ぼく

2 : わし

3 : おれ

Please comment below, easily!