Answer :
Final answer:
Tanks were the key technological development during World War I that helped end the stalemate in the trenches. Other technologies such as machine guns, poison gas, and artillery bombardments, while devastating, mainly reinforced the dynamics of trench warfare. Option b is correct.
Explanation:
The technological development that ended the stalemate in the trenches during World War I was the tank.
The initial tanks were designed to support infantry, leading to the potential to end trench warfare. While they had their limitations and initial challenges, such as malfunctioning and vulnerability to muddy conditions, their ability to keep pace with advancing infantry and transport large artillery, presented a new strategic advantage on the battlefield.
Among the other technological advancements, none had the significant impact as the tanks in breaking the trench stalemate. Machine guns and poison gas, while transformative, essentially fortified the trench warfare dynamic, causing horrific injuries and mass casualties.
Similarly, the increasing power and range of artillery bombardments primarily led to more casualties, but did not fundamentally change the dynamics of trench warfare.
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