Which characteristic of living monkeys suggests that the earliest anthropoids were monkey-like?

• A. All monkeys lack tails, like prosimians.
• B. All monkeys are arboreal, like prosimians.
• C. Like prosimians, monkeys rely more on smell than on eyesight for finding food and avoiding predators.
• D. Of all the anthropoids, monkeys have brains that are most similar in size (relative to body size) to those of prosimians.