Some researchers argue that the robust australopiths should be classified in a separate genus. What is that genus called

Researchers argue that robust Australopithecines should be classified in a separate genus called Paranthropus.

Explanation:  The "robust" australopiths are a group of fossil hominins that existed in East and southern Africa between approximately 2.5 and 1.4 million years ago (Ma). They are referred to here as members of the genus Paranthropus, though considerable disagreement about their proper taxonomy persists. (credit to the internet)

answer; ///(b) it is composed of four protein chains and four heme groups;