Which of the following statements accurately describes the movement of ideas and goods during the middle ages? !

a.
the rivers of europe allowed people to move easily and spread new ideas.

b.
the mountains of europe made transportation and the spread of goods and ideas difficult.

c.
europe's many oceans and seas were the only means of travel to asia.

d.
european rivers did not flow from east to west, which limited the spread of ideas and goods.

A. The rivers of Europe allowed people to move easily and spread new ideas.

Explanation:

The eastern Mediterranean world was connected via land courses that went directly through Central Asia to China—the Silk Road, for instance—however it was additionally connected to a tremendous arrangement of seaborne exchange courses in the Persian Gulf and in the Indian Ocean. Merchandise traveled via train or by ship from the Persian Gulf area and the Indian Ocean locale, in the long run connecting together South Asia and the eastern bank of Africa with the eastern Mediterranean. At that point through Italian shippers the results of those pieces of the world were taken back to Western Europe, by means of stream or overland exchange courses, to places like France and England.

what are local authorities doing to fix the problem

explanation: what are local authorities doing to fix the problem