Answer:
A. Spices should be your answer.
Explanation:
Many Asian countries made rich spices that the Europeans enjoyed. They would trek across the continents to get to places such as India where they would trade things for spices.
Migration helps in improving the quality of life of people. It helps to improve social life of people as they learn about new culture, customs, and languages which helps to improve brotherhood among people. Migration of skilled workers leads to a greater economic growth of the region.
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It does not exceed 50 degrees fahrenheit