The correct answer is B) Human life began in Africa first and then moved around the world.
The two competing theories about how and where humans came about would Donald Johanson, discoverer of Lucy, be most likely to support is "Human life began in Africa first and then moved around the world."
Archeologists believe that Africa is the "Cradle of humanity." They have made much research and concluded that the first type of humans lived in the region of South Africa, and from there, they spread around the world. Donald C. Johanson was the Paleoanthropologist who discovered "Lucy" in 1974, a fossil female skeleton found in Ethiopia dated 3.2 million-years-old.