Answer:
B
Explanation: because A is a very reasonable answer but then B a lot of people will disagreee with that making it debatable
A)a new defensive tactic known as trench warfare
Trench warfare allowed the war to drag on for long periods of time because of the stalemates that ensue from the opposing armies refusing to give up the land under their controls, resulting in high casualties in no man's land.
Hope this helps
Strong and brave. Hope that helps you with your work
Their readers can refer to other articles, or it can back up proof that they aren’t committing plagiarism.
