Answer:
The right answer is D.
Explanation:
Moving quickly between the Atlantic and the Pacific was a strategic advantage for the U.S. Navy. Beyond maritime or trade reasons, controlling a canal in the isthmus of Panama had significant geopolitical reasons for the United States and its new, more active involvement in world affairs in the early years of the 20th century.
They were excited about the development of coal, timbers, metals, and fertilizers. Also, they were excited about agriculture.
Answer:
When making an interpretation of a past event, an historian analyzes existing studies related to the event to determine if they are biased.
Books became less expensive because labor was required
