The answer is D. Kangaroo.
A fox, yak, bear, and sheep are all mammals. A kangaroo is a marsupial. Marsupials are mammals that give birth to very young, underdeveloped young. The young then crawl to the mother’s pouch, where they continue to develop.
Foxes are small, furry mammals that are found in many parts of the world. They are predators and eat a variety of small animals, including rabbits, rodents, and birds.
Yaks are large, hairy mammals that are found in the mountains of Asia. They are herbivores and eat grass, leaves, and other plants.
Bears are large, furry mammals that are found in many parts of the world. They are omnivores and eat a variety of things, including plants, meat, and insects.
Sheep are large, hoofed mammals that are found in many parts of the world. They are herbivores and eat grass, leaves, and other plants.