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.

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

Explanation:

Trade in the first cities was very different from the trade we know today. There were no major industries and monopolies, commodities and many other commercial factors that we know of. At that time the trade was basically made by artisans and farmers and it was not uncommon for them to create a type of "organization" to improve the relationship of their businesses. Thus were born the guilds. The associations formed by professional and independent artisans, on equal terms, which emerged in the Lower Middle Ages (12th to 15th centuries), designed to protect their interests and maintain the privileges they received, were called guilds or craft corporations. Other guilds, without economic relevance, had a religious, charitable or leisure character.

The giuldas were supposed to be a good thing for the trade, but they had many dishonest and disreputable craftsmen. Many merchants who did not belong to the Gilda also showed a bad reputation and dishonesty. As a result, many people did not want to buy products from dishonest people, with that the trade was falling and weakening, leading to the destruction of some cities.

the answer to your question is,

old stone age.

-mabel < 3