If a Person Wants to Use Shaping to Train a New

If a person wants to use shaping to train a new puppy to respond to a name, he would call the name and then:

A) reward once the puppy comes all the way to him.
B) reward when the puppy looks at him, then for turning toward him, and then for taking a few steps in his direction.
C) jingle some keys or shake a dog toy to get the puppy interested enough to come over to him.
D) pull the puppy with a leash, then reward when the puppy reaches him.