The growing middle class has lead to new markets, supported economic growth and has built stronger communities. Just like how rock and roll has brought people together, has helped develop new genres of music and has made tremendous strides in changing the music scene for the better.
A Bongo drum is not included in a drum set. So the answer is B. I don't play drums, but it makes sense being as a bongo drum doesn't seem to belong in a band. I hope I helped :).
