Final answer:
The earliest primates most likely resembled a modern-day tree shrew, as they share similar characteristics and body structure.
Step-by-step explanation:
The earliest primates most likely resembled a modern-day tree shrew. Tree shrews, also known as scandents, are small, squirrel-like mammals that share several characteristics with primates, such as forward-facing eyes and grasping hands. They have a primitive body plan that is believed to be similar to the early primates. While other options such as bears, raccoons, and kinkajous share some similarities with primates, tree shrews are the closest in terms of overall resemblance.
Learn more about Primate evolution