If You Are Using "Shaping" to Increase the Likelihood That

Multiple Choice

If you are using "shaping" to increase the likelihood that a child will put away all his toys, what would you need to do each time the child does a better job of putting away his toys than he did previously?

A) give the child a closer approximation to the reinforcement
B) model the correct behaviour by picking up the remaining toys
C) give the child a reinforcer
D) give the child a UCS