Sorry you need a little more detail for your question.
An experiment that could test the Premack differential probability rule is as per the following; the kids are given two reaction choices, one for playing pinball machine and another for eating confection and these practices are evaluated to figured out which is more plausible for every kid. A portion of the youngsters who discovered to favor one movement. In the second period of the trial, the testing of the youngsters was directed with one oF the two systems. In the primary strategy, eating was a fortifying reaction while playing pinball was the instrumental reaction implying that the youngsters played pinball keeping in mind the end goal to eat the confection.
The answer is D
(using intensive farming practices that removed protective grasses.)
Hope it helps :)
