Answer:
The large combination of all these factors is false.
Some of them happened but some of them didn't. So the correct answer for the question is: False because not all of them happened.
Explanation:
All right to understand why the correct answer is false we need to analyze the following. In this question, you combine many events to ask if every one of them happened. There is a final question, is the combination of all of these factors true? no, it is not. Because some of them did happen, while some of them didn't. Therefore the answer is false. I would like the answer to say which ones are true and which ones are false, but it doesn't ask for this either. I believe this is a very difficult question for a preparation test to see if you actually managed to learn about the territorial history of the U.S. and Canada.