1. The need for gold and silver made it lucrative to carry out trade with other countries
2. Mercantilism - The economic policy that emphasized the need of every nation to build as much wealth as it can in order to gain power
3. Insurance companies became more formalized as risk mitigation started gaining priority. Laws were changed to deal with insurance issues
4. free trade policies. Governments became involved themselves in trade by grant royal trade monopolies.
Answer:
Goods traded between the Arab world and Europe included slaves, spices, perfumes, gold, jewels, leather goods, animal skins, and luxury textiles, especially silk.
Explanation:
New uses for medicine were discovered would be your answer.
B, routes of major cattle trails
