Which example illustrates the proper way to cite a source with two authors in a research report when the authors' names appear as the subject of the sentence?

In classical conditioning, when the conditioned response is extinguished, but reappears later, the reappearance of the response is called _________

a. higher-order conditioning. b. instinctive drift. c. spontaneous recovery. d. stimulus generalization.

The rigid notion that old people who live in institutions have nothing to contribute to society often prevents them from optimizing what talents and skills they do have. This is an example of ______

a. working backward c. functional fixedness b. elimination d. compensatory modeling