To build his empire, alexander the great primarily relied on his experience in building trade relations. his education in a number of languages. his extensive training in military tactics. his strong background in engineering.

The correct answer is C. His extensive training in military tactics

Alexander the Great or Alexander III of Macedon was one of the kings of Ancient Greek, he ascended to the throne in 336 BC when he was 20 years old. Alexander the Great is recognized for building one of largest empires by expanding the empire from Greece to India. He achieved this through multiple military campaigns in Asia and Africa as few could defeat him during battles and because of this, he is recognized as an important commander. In summary, Alexander the Great relied on his military training and tactics to build his empire.

s the president shall be commander in chief of the army and navy of the united states, and of the militia of the several states, when called into the actual service of the united states; he may require the opinion, in writing, of the principal officer in each of the executive departments. sooo yeahhh

explanation:

oil! is what i am assuming