Study these maps. Based on the maps, what conclusion can be drawn about the Assyrian empire?

A. The Assyrians were the first civilization to start using iron weapons instead of bronze weapons for war.
B. The Assyrians were not very culturally advanced because they lost land to their neighboring enemies.
C. The Assyrians were able to conquer neighboring lands and expand their empire because of their military skill
D. The Assyrians were able to take over the Hittites because the Hittites did not use iron weapons for war.