Please help me i dont understand this The story is "music and the brain" How does the inclusion of the brain research study in Paragraph 3 help develop the central idea that music improves brain function?

this is Paragraph 3 "Recent brain research has shown some surprising benefits as a result of formal musical training. Learning to play a musical instrument appears to develop parts of the brain that can even influence academic results. The studies indicate that the earlier a child begins training, the more benefits there are. One such study showed that children who began musical studies before the age of seven had a more developed brain in the region where language production and auditory processing take place. Scientists believe there is mounting evidence to show that early musical training can improve brain function."

It supports the claim that children who learn to play a musical instrument at an early age improve their chances of becoming better musicians.

It supports the claim that the daily discipline of practicing a musical instrument improves academic results.

It provides evidence that children who study music at an earlier age have better developed language and auditory skills.

It provides evidence that there are academic benefits to formal music training for young children.