Which of the following standbys accurately describes the movement of ideas and goods during the Middle Ages?

Options:
The rivers of Europe allowed people to move easily and spread new ideas
The mountains of Europe made transportation and the spread of goods and ideas difficult
Europes many oceans and seas were the only means of travel to Asia
European rivers did not flow from east to west, which limited the spread of ideas and goods

The mountains of Europe made transportation and the spread of goods and ideas difficult.