Refer to the passage. "They then gave such an account of the magnificence and splendour of his court . . . the great strength of his metropolis, how it lay in the midst of a lake, and the great depth of the latter. Several causeways, they added, led to this city, which were intersected in various places, over which wooden bridges were built, under which canoes could pass; but, if they were removed, the space between every two sections became an island, and all entrance to the town was completely cut off. Nearly the whole of the houses of the city were built in the water, and it was only possible to get from one building to another by means of drawbridges or canoes. Balconies were attached to each house, which were provided with a kind of breastwork, so that the inhabitants were able to defend themselves from the tops of the houses. Yet the whole town was well supplied with sweet water from the spring of Chapultepec, which lay about two miles from the town, whence the water was partly conveyed to the houses by means of pipes, partly in boats through the canals, and then retailed to the inhabitants.” European cities and contemporary Aztec cities most likely differed in which of the following ways? A. European cities such as London and Rome were larger than Aztec cities. B. Aztec cities were much dirtier and more prone to outbreaks of disease. C. Aztec cities were often better organized in terms of civil infrastructure. D. European cities were smaller but were better able to provide necessities.