A group of scientists examines the skeletal evidence below. What conclusion can be drawn from the diagram to support the theory of evolution?

Man evolved from gorillas which evolved from chimpanzees.

Gibbons are most closely related to man because of similarities in their skeletal structure.

Orangutans have a larger jaw size than chimpanzees, allowing them to have a more carnivorous diet.

Gorillas continued to walk on all four limbs to move around on the floor of forests, while man became bipedal to live in grasslands in order to hunt and carry food.