Question

which of the following weapons helped continue the stalemate on battlefields during world war i?
○ the tank
○ the submarine
○ the fighter plane
○ the machine gun

Explanation:

In World War I, machine guns had a high rate of fire, which made it extremely difficult for infantry to advance across no - man's - land. This led to a stalemate as both sides could use machine guns to defend their positions effectively. Tanks were actually a weapon that was introduced to break the stalemate, submarines were mainly used in naval warfare (not the main factor for the stalemate on land battlefields), and fighter planes were in their early stages and not the primary reason for the stalemate on the battlefields.

Answer:

the machine gun