The Americans were huge areas of fertile land, and the European powers needed people to work on its fields. African slaves were a cheap and abundant solution.
The Answer Is A
A farmer uses observations of the stars to determine when to plant crops.
Answer: C. The United States discovered nuclear missiles being stationed in Cuba.
Explanation:
There is no correspondence attached but option C is most probably the answer because it is the only factual option there.
When the United States found out that nuclear missiles were being positioned in Cuba which was so close to the American mainland, it sparked the Cuban Missile Crisis which saw the two Superpowers almost go to war until an agreement was reached to withdraw missiles from Cuba and Turkey.
One important gain by the colonist after the French and Indian war is that they gained more land.