I believe its A because that just makes the most sense
I am jewish by the way
Answer:
1. to ensure there's food to trade for vital natural resources in other countries.
Explanation:
You can't start an industrial revolution without necessary resources and materials to do so, and in order to get these materials you must make sure there's food to trade for them.
Europeans carried a hidden enemy to the Indians: new diseases. Native peoples of America had no immunity to the diseases that European explorers and colonists brought with them. Diseases such as smallpox, influenza, measles, and even chicken pox proved deadly to American Indians.
It's called 'cause in fact'