<span>Assuming that this is referring to the same list of options that was posted before with this question, <span>the correct response would be "a dredge" since most ports are built in areas where the bottom of the harbor is not naturally deep enough to fit large boats.</span></span>
Babylon.
It's asking for the capital of the Babylonian Empire, which was Babylon.
Memphis was in Egypt (and there's a newer one in Tennessee that has significantly fewer pyramids), Sumer was the name of a Mesopotamian civilization that became Babylonians, Hammurabi was a King of Babylon who wrote down his laws on a rock, which we found and were impressed with, because its the oldest such thing we've ever found.