I would say D!
The students are struggling and without motivation they’d probably struggle more!
C. A heavy rainstorm.
The text shows indication of a storm arriving. “Clouds arrived” are an indicator that clouds quickly appeared. “Lightning flashed” tells us these are storm clouds. It makes sense that next it would start raining, making the next event a heavy rainstorm.
Answer:
But progress is not foreordained. The key is freedom—freedom of thought, freedom of information
Perhaps most exciting are the winds of change that are blowing over the People's Republic of China
And that's why it's so hard for government planners, no matter how sophisticated, to ever substitute for millions of individuals
Even though I wasn't there, I did hear about it. As far as I knew, the student was in trouble because she didn't ask the teacher or someone for permission.
I’m pretty sure the answer is, It gives more precise examples of how musical training can change the brain.