B they tend to promote because training and getting people ready takes a lot and they want to keep them there as long as possible instead of paying to retrain people all the time
You acquire a Copyright. This is done by registering your song with the U.S. Copyright Office if you live in the U.S.
If this is a true or false question, the answer is true. Some people are born leaders. They are usually at the top of the leadership bell curve and becomes better compared to those at the bottom that no matter how they try hard they cannot be leaders thus providing good service is then innate.