Which of the following statements is hasty generalization?

A、Mind and rivers, can be both broad. It is a known fact that the broader the river, the shallower it is. Therefore, it must be true, that the broader the mind is, the shallower it is.;
B、My friend has been eating only hamburgers, pizza and fries for a decade, and he has no health issues. Therefore, fast food is not unhealthy for you. ;
C、Students who attend schools with expansive music programs tend to perform much higher on standardized testing. So, all we have to do to lift poorer-performing schools is introduce more music classes.;
D、More and more young people are attending high schools and colleges today than ever before. Yet there is more and more juvenile delinquency among the young than ever before. This makes it clear that these young people are being corrupted by their education.