"The bus is travelling to the right ."

When asked, "Why do you think the bus is travelling to the right ?"

They answered: "Because you can't see the door to get on the bus."

get it?

if the bus is travelling to the left, you would be able to see the door.

anw, for those of you who sms me the ans, hope you are happy that you got it right for the wrong reasons. haha.