Which of the following statements is true?
o A. Economics is a science since the study of economics uses models and theories that are subject to empical testing o B. Economics is not a science since the models developed ate a simplification of the real world o C. Economics is not a science since only biology, physics, and chemistry can be called sciences o D. In order for a discipline to be considered a science, it must be possible to set up laboratory experiments The ceteris paribus assumption means o A. other things equal o B. more is better. o C. people respond to incentives. o D. all people are rational.