What were some of the advantages of using firearms that led them to become more popular as the need for soldiers increased for governments? Select all correct answers.

With limited training and iron discipline, previously untrained men could become competent soldiers in six months of less.

Individual skill in handling weapons was much less important than being able to maintain a concentrated rate of weapon firing.

Firearms produced more noise and gave the impression of being more dangerous and terrifying to the enemy.

The use of firearms did not require high levels of skill.

The firearms required lots of training to be able to use them.