The absolute monarch Maria Theresa of Austria increase her authority by curbing the power of the nobles and<span> limiting the power of the Church.
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The first secretary of the United Nations was Trygve Lie.
Answer:
C. Trench warfare
Explanation:
A's incorrect as alliances have existed for thousands of years
B's incorrect as an infantry charge's greatest weakness is the machine gun for obvious reasons
D's incorrect as both sides had machine guns, and was not the reason for victory.
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This leaves C, which makes sense as troops would be forced to hide on lower ground due to the deadliness of machine guns
It wont let me answer, I’ll put my answer in the comments
