Answer:
Research consistently indicates that actively playing music has a positive impact on brain development.
Explanation:
Throughout the entire text, we are informed about all the good things music can give us as it is said to have helped some of the greatest men in history such as Einstein and Jefferson.
Nevertheless there is a constant mention of actively paying music in the passage. The research was mainly conducted on those who played an instrument because it is the active engagement that rewires the brain, while passive appreciation of music cannot provide such brain improvement.
