Final answer:
Alexander the Great traveled eastward from Macedonia to conquer more lands, including territories through the Persian Empire and into Afghanistan and India.
Step-by-step explanation:
After leaving his kingdom of Macedonia, Alexander the Great traveled primarily eastward to conquer more lands. He embarked on a series of conquests, from Macedonia through the Persian Empire and into regions such as Afghanistan and India. Alexander's eastern campaigns included defeating tribesmen in what is now Afghanistan and battling an Indian king in the Indus River Valley around 327 BCE. Although he heard of kingdoms farther east towards the Ganges River Valley, his troops, rich with plunder and exhausted from the length of their campaign, mutinied, refusing to continue further east. Thus, the correct answer is A) East.