A girl classically conditions her dog to blink by blowing into her dog's eyes just after saying "Blink." Unfortunately, her parrot overhears the procedure, and says "Blink" all day long when the girl is out. When she returns, the girl says "Blink" to her dog, but he does not blink. It appears as though
◦ the dog is now under the parrot's control.
◦ spontaneous recovery has occurred.
◦ the dog's behavior has generalized.
◦ extinction has taken place.