Which statement from the text of city best shows that the author admires the work of ancient roman city builders?
a. "because of the efficient organization of farmland and the large numbers of markets and bakeries, food continued to remain in good supply."
b. "by a. d. 100 verbonia's population was almost fifty thousand."
c. "these spaces were rented by shopkeepers who constructed a wooden platform on which to live eight feet above the floor."
d. "the streets, although busy, were not overcrowded."