A Puppy Has Ruined Four Pairs of Shoes by Chewing

Multiple Choice

A puppy has ruined four pairs of shoes by chewing them up at times when the family is not home. Which of the following is the most effective way to use punishment to teach the puppy not to chew shoes?

A) Make a loud noise whenever you come home and find shoes chewed up, but then hug it and give it a bone so that it won't be afraid of you.
B) Make a loud noise whenever you catch it in the act of chewing shoes, but then hug it and give it a bone so that it won't be afraid of you.
C) Make a loud noise whenever you catch it in the act of chewing shoes, but not at other times.
D) Make a loud noise whenever you come home and find shoes chewed up.