The notion that the great apes, such as chimpanzees and gorillas, can imitate one another might seem unsurprising to anyone who has watched these animals playing at the zoo. But in scientific circles, the question of whether apes really do “ape” has become controversial.Consider a young chimpanzee watching its mother crack open a coula nut, as has been observed in the Taï forest of West Africa. In most cases, the youth will eventually take up the practice itself. Was this because it imitated its mother? Skeptics think perhaps not. They argue that the mother’s attention to the nuts encouraged the youngster to focus on them as well. Once its attention had been drawn to the food, the young chimpanzee learned how to open the nut by trial and error, not by imitating its mother.What does the word “ape” (Para. 1) probably mean?A. Play at the zoo.B. Crack a nut.C. Imitate.D. Watch.