Which Occurrence Is Likely to Result in a Negative Contrast

Multiple Choice

Which occurrence is likely to result in a negative contrast effect?

A) Sylvia is given a choice between helping to clean the house or doing yard work.
B) Ryan receives $40 for cutting the neighbors' grass and $20 for mowing his parent's lawn.
C) Hector's boss criticizes him when he makes mistakes and praises him when he performs his job correctly.
D) Christa learns that if she eats ice cream slowly she does not get a headache, but if she eats it too quickly she does.