Answer:
a.Nebuchadnezzar
Explanation:
During the reign of King Nebuchadnezzar, the Persians whose capital city was Babylon prospered a great deal. They were the most powerful nation on the earth and the bulk of the earth succumbed to their rulership and mastery. They built giant cities with awesome architectural features. They were well advanced in mathematics, geometry and astronomy.
King Nebuchadnezzar(king of Babylon c. 605 BC – c. 562 BC) was at the centre of Babylon's prosperity. He restored the ancient glory of babylon and built the famous hanging garden of babylon, one of the seven wonders of the world till date.
