Hello. This question is incomplete. The complete question is in the attached figure.
Answer:
The letter C is the right answer.
Step-by-step explanation:
The author wanted to show two different arguments related to the benefits that music is capable of transmitting to children in relation to academic results. In doing so, the author shows that he did extensive research and was committed to showing both sides of the argument to his readers in an impatient and completely informative way.