A map titled Empire of Alexander the Great. Shading extends from Macedonia and Greece, south into Egypt, east into Ionia, through Media and Persia, ending near the border of India. Study the map. Which statement best describes the expansion of Alexander’s empire?

Alexander mainly expanded his empire to the south to include much of Africa.
Alexander mainly expanded his empire to the west to include much of Europe.
Alexander mainly expanded his empire to the east to include much of Asia.
Alexander mainly expanded his empire to the north to include much of Asia.