Playing a musical instrument engages muscular movement, requires coordination, and employs various senses. This intricate process of making music creates motion and emotional response. According to one scientist’s studies, intense musical training increases not only the volume of the brain, but also improves the connections between the hemispheres of the brain. How does Paragraph 7 shape the central idea of this passage?

It supports the idea that music improves a person's movement and coordination.

It provides evidence that playing a musical instrument improves connections in the brain.

It provides evidence that people who play music use a variety of their senses.

It supports the idea that making music is a complex process involving a variety of senses.