Which aspect of Roman city life contributed to the spread of disease?

Deforestation of Rome's cities, particularly near the Tiber River, led to higher disease rates. The causality is as follows: deforestation lead to a rising water table, which increased marshes. This increased the larva in Rome, and in turn increased disease borne from blood-sucking bugs.

Explanation:Hope this helps!!!

the answer is a, salt plain

i think the answer's are a) b) and c)