Final answer:
The correct answer is option b.The Babylonians built the world's largest library around 650 BC under the direction of the Assyrian King Asshurbanipal, who sought to collect all the texts of his kingdom to preserve learning and literature.
Step-by-step explanation:
The builders of the world's largest library around 650 BC were the Babylonians. The Babylonian kings, especially King Asshurbanipal after 660 BCE, were known for their appreciation and support of learning and scholarship. Assyrian kings were proud of the cultural and intellectual heritage of Mesopotamia and supported learning and scholarship, with Asshurbanipal ordering the collection of texts from his kingdom and beyond to create a massive library.
While the Alexandrian Library in Egypt is often recognized as one of the most famous libraries of the ancient world, it was not built until much later, established in the city founded by Alexander the Great in 331 BCE. The Museon or Museum of Alexandria was indeed a center of learning and housed an immense collection of scrolls, but this was not until the Hellenistic period, well after the Babylonian library's existence.The legacy of the Babylonians includes not only their monumental architecture and achievements in astronomy and mathematics but also their respect and preservation of cultural and intellectual practices, as seen through the establishment of one of the earliest and largest libraries of the ancient world.