It threatens colonies that refuse to join the plan of union
So the question ask what is the result in the westward expansion in the mid 1800's and the best answer among your choices is letter A. increased dramatically. I hope you are satisfied with my answer and feel free to ask for more if you have clarifications
Answer:
It was caused by an H1N1 virus with genes of avian origin. Meaning, it came/spread from birds such as North American and wild.
Explanation:
Hello Iv never answered a question before what do I do?
