Answer: A, "From Africa to Italy."
Explanation: Based on the information provided, the best heading for the section containing paragraphs 1 and 2 would be option A, "From Africa to Italy." The first two paragraphs provide background information on the migration of early humans out of Africa and their subsequent arrival in Italy, which is summarized by the heading "From Africa to Italy." The other options do not accurately capture the content of the first two paragraphs.