According to the Matching Law, in an Experiment Where a Pigeon

Multiple Choice

According to the matching law, in an experiment where a pigeon has to press colored keys to receive food, the percentage of responses emitted on the green key should have been 65% when it was associated with the richer schedule and 15% when it was associated with the poorer schedule. The respective percentages were instead 55% and 10%. This is an example of

A) matching.
B) COD.
C) optimization.
D) bias.