“—a thoroughbred horse or hound is worth more than a score of them.”
Since you don't include "the following" benefits of college then one may surmise the benefits:
1) Increased education
2) increase in making personal connections that benefit ones ability to get a job
3) personal growth toward becoming independent ...
For starters.
One thought that is not a benefit is
1) having lots of free time to do what one wants to do.
answer is - A. they paint their bodies black
The compound sentence is B