The correct answer to this open question is the following.
Although the question is incomplete because it does not provide a specific reference about the author of the letter or any other reference, we can comment on the following.
A primary source is the piece of information that was written by a character or an individual that lived in the moment of the event, was part of the event, or witnessed the event. This individual could have written a letter, or a document -including a book. Or he/she took a photograph. Or was part of an interview. The secondary source includes information from a third person who was not part of the time or event but has found information through other resources. It is the case of an encyclopedia or researchers/historian books.
Answer:
Correct answer is A. The United States built a canal in Panama.
Explanation:
Option A is the correct one. President Roosevelt decided to create a canal after United States gained control of the area. They started building the channel in 1904, and was finished by 1914.
Option B is not correct as Latin American states weren't able to prevent United States to show their strength in this period.
Option C is not correct as United States prevented any new colonialism of continent.
Option D is not correct as United States totally had political control on the continent.
Answer:
Because the United States is a global superpower and has the worlds largest military, Canada is also the United States' biggest trade partner and ally. Many laws and rules in the United States end up being the foundation for Canadian laws and rules. Our economies are closely tied together and when one succeeds, generally so does the other and vice-versa
Better transport so you could see their better, machines were doing jobs so you could hang more, gave you something to talk about (new inventions)