Which of the following statements about dangers to early cities is false?

A.
Poor building materials made early cities more prone to disaster.
B.
Guilds and disreputable traders led to the economic decline of early cities.
C.
Poor planning led to the destruction of many early cities.
D.
Natural disasters destroyed early cities located in dangerous locations.

Please select the best answer from the choices provided.

B. Guilds and disreputable traders led to the economic decline of early cities.