Answer: D.
According to the matching law, there is a consistent relationship between the proportion of reinforcers obtained on a certain alternative and the proportion of responses emitted on that alternative
Explanation:
The matching law states that the rate at which we perform behaviors matches the rate of reinforcements available for those behaviors.
Paul Chance put forward an equation to explain the matching law;
B1/B2 = R1/R2
where;
B1 and B2 are two different behaviors,
R1 and R2 are the corresponding reinforcements for those behaviors.