Answer:
The correct answer is A) megalopolis
Step-by-step explanation:
I had this question on usatestprep and this was the correct choice. Usatestprep's description: "A megalopolis is a relatively new phenomenon. It exists when major cities that are relatively close together experience suburban sprawl, which makes their borders seem to merge into one enormous city. A prime example of this would be the area between Washington, D.C., and Boston, Massachusetts."