Why was the machine gun important

As a class of military kinetic projectile weapon, machine guns are designed to be mainly used as infantry support weapons and generally used when attached to a bipod or tripod, a fixed mount or a heavy weapons platform for stability against recoils. Many machine guns also use belt feeding and open bolt operation, features not normally found on other infantry repeating firearms.

It changed the tide of the war

Explanation:

Thanks to the machine gun which was introduced during the first world war.Soldiers were able to put more pressure on frontlines and whatnot

it would be a. that is the only one i could think of

the answer is c. brainliest me