Answer:It felt it had no choice because Russia and Britain were so powerful.
Explanation:
A document-based essay shows how the theme under discussion relates to the time period of your attention. The purpose of writing it is for you to study the documents your professor gave you to learn and communicate an important idea about history. The writing is evidence founded so it tends to prove a point and for that you need facts and details (option A).
Good luck on your work!! <3