Well you got the right answers even though you didn't know what you were doing, so I assume you know what you are doing even though you think you don't
I need a photo ..................
An example of reinforcement would be a mother gives her son praise (reinforcing stimulus) for doing homework (behavior). The little boy receives $5.00 (reinforcing stimulus) for every A he earns on his report card (behavior).
An index is an example of A.) A primary source
Hope this helps!