Final answer:
The correct option is A. Africa. The oldest hominin fossils are found in Africa. Fossil evidence shows that early humans migrated within and out of Africa, settling in different parts of the world. The last major continental settlement was in North and South America.
Step-by-step explanation:
The oldest hominin fossils are found in Africa. Fossil remains have been found in both Africa and Europe of humans that lived hundreds of thousands to millions of years ago.
These early hominins migrated within and out of Africa, settling parts of Europe, Asia, and eventually Australia, adapting to their new environments and diversifying biologically as a species. The last major continental settlement was North and South America.