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Naturalist: Different nonhuman primate species exhibit many contrasts in behavior. If a zookeeper leaves a screwdriver within reach of a chimpanzee, the animal is likely to examine and play with it for a time, and then move on to something else. In the same circumstances, an orangutan is likely to pretend to ignore the tool at first; later, in the zookeeper's absence, the orangutan may use the screwdriver to try to dismantle its cage.
7.
Which one of the following is most strongly supported by the naturalist's statements?
a
Orangutans are the most intelligent of nonhuman primates.
b
Orangutans have better memories than chimpanzees have.
c
Some nonhuman primates are capable of deception.
d
Orangutans dislike being caged more than chimpanzees do.
e
Not all nonhuman primates understand tool use.