A, a concert of the singer (I'm actually not so sure but medium means media and it's a system of communication.
Answer:
The paragraph gives a real-world example of a benefit found when students participated in music education. It reported the better rate of college attendance, and also included information about higher reading scores for students who study music / are actively engaged for 2 years.
Explanation:
The reported research results back up the claim of music influencing brain development.
Prepare what you are going to say! If you just say something without thinking first, it can escalate the situation even more. Hope this was helpful ;)