The answer is: c. his mother gave him his allowance for doing his chores
Secondary reinforcement refers to something that could influence other people to do a certain behavior that come from other thing beside their own will.
When a mother gives allowance for his chores, it could make the children much more likely to do the chores. But the increase in likelihood does not come from the children's will, but from the children's intent to get the money,.
North Korea considers the United States a threat and an outsider that shouldn’t be on the Korean Peninsula. The military exercises are seen as a act of agression
The correct answer is letter E
Explanation: The American Protective League worked with the Justice Department to identify radicals.