Which of the following statements best explains the relationship between cities and the development of trade?
a.
cities were crucial to the development of guilds and trade associations.
b.
cities became centers for collecting regional products and importing foreign products.
c.
cities encouraged civic participation through open locations for assembly.
d.
cities became centers of education and sports as job specialization encouraged more leisure time.

Which of the following statements best explains the relationship between cities and the development of trade?

B. Cities became centers for collecting regional products and importing foreign products.

Cities are used to collect products and disperse them to consumers. Trade is done by importing and exporting goods to other countries. When trade is being developed, cities adapt to their new roles for bringing in new items. Trading is a key factor in economic development and can boost a country's economy if done correctly.

"choosing is refusing" means individuals face an opportunity cost with each decision they make. economists state that every decision involves trade-offs. opportunity cost is the least desirable alternative given up as a result of a decision.

i would say b. research typically uses a variety of sources