Answer :
Alexander the Great became King of Macedonia, when his father Philip was killed.
D. Macedonia
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Alexander the Great, the son of King Philip of Macedonia, was one of the greatest conquerors of the ancient world. He came to power 336 BC. and from Macedonia 334. BC. he took control of the southern Greek cities. After that, he went into an unprecedented conquest. He conquered Persia, Asia Minor, Syria, Palestine, India, Egypt.
The answer is: D. Macedonia