Which of the following do scientists believe about Homo sapiens?
A. They were the earliest ancestors of modern human beings.
B. They arose in different parts of the world at the same time.
C. They arose in Africa and spread to the rest of the world
D. They once lived in Africa but we're replaced by modern humans
C. They arose in Africa and spread to the rest of the world
Scientists believe that Homo sapiens originated in Africa and then migrated and spread to various parts of the world. There is evidence to support this theory, such as genetic studies and fossil evidence.