One of the Most Important Rain Forest Predators, Attacking a Wide

One of the most important rain forest predators, attacking a wide range of different primates, is the monkey-eating eagle.We know this because

A) hundreds of primate bones have been found in eagle nests, allowing the study of which primates eagles prefer to hunt.
B) all forest primates have an identical alarm call that means, essentially, "Eagle!"
C) large forest eagles have markings that make them look like monkeys, so they can get very close to their intended prey.
D) in captivity, when presented with a monkey versus other possible food, the eagles almost always go for the monkey.