Answer
a.
Work Step by Step
Binocular vision gives primates the ability to see in depth to be able to judge distances between trees.
A larger, more complex brain allows primates to process information for better coordination of the limbs and for better processing of visual input.
Primates have only one offspring at a time because they can only carry one offspring at a time when moving between trees.
Language is not a characteristic specific to primates; it is only found in humans.
