TOEFL Listening: ETS-TOEFL听力机经 - 9D714EE3B1E566J1P$

In the second study described, what was the reaction of the scrub jays whose caching behavior had been observed by other birds? A. The scrub jays stopped caching when the other birds left. B. The scrub jays later returned and re-cached the food. C. The scrub jays abandoned the food that they had cached. D. The scrub jays stole food that had been cached by the other birds.