It's time to go home now. I am on a bus on a rainy day, and a woman with a dog gets on the bus. It is a big dog and its feet are not clean. I don't want the dog to sit near me. But the woman says to the conductor . "Oh, I pay for my dog. Can he sit here like the other people?" The conductor looks at the dog and says, "Yes, madam, but he must not put his feet on the chair." The meaning of the conductor's word is   _  .
the dog's feet are like the other people the dog must be like a man the dog must not sit on the chair the dog can sit here