The City of Nineveh, Under the Reign of Assurbanipal, Was

The city of Nineveh, under the reign of Assurbanipal, was notable for ______________.

A) building extensive ziggurats to glorify the king
B) being a central repository for the imperial cavalry
C) housing extensive libraries of cuneiform tablets
D) having 150 tons of iron bars on hand for weapons manufacture
E) the most elaborate religious temples to their harvest god, Zardoz