About 65 Percent of Adults Over the Age of 20

Multiple Choice

About 65 percent of adults over the age of 20 are overweight.Based on what we know about operant conditioning,which of the following may contribute to the problem?

A) Eating is pleasurable for most people (positive reinforcement for eating happens immediately) .
B) Punishment (gaining weight) happens over the long term rather than right away.
C) Television and movie stars often seem to eat whatever they want,apparently without gaining weight (observational learning) .
D) All of the choices.