Frank Begins Training His Dog Sigmund to Bring Him the Newspaper

Multiple Choice

Frank begins training his dog Sigmund to bring him the newspaper by giving Sigmund a treat when the dog goes to the door. During successive attempts at training, he rewards Sigmund with a treat when the dog sniffs the newspaper, picks up the newspaper in his mouth, and brings the newspaper to Frank. In this example, Frank is training his dog using which of the following?

A) principles underlying a token economy
B) secondary reinforcers
C) shaping
D) principles of classical conditioning