Trench warfare caused the immobilization of troops on the

I think you forgot to give the options along with the question. I am answering the question based on my research and knowledge. Trench warfare caused the immobilization of troops on the western front. I hope that this is the answer that you were looking for and the answer has come to your desired help.

Somes tribes thought of them as a greater being

B. it promoted the powers of the executive branch