Being a composer doesn't equate to being a good person. Whether we are a good person or not doesn't depend on what our profession is. For sure, many composers are good people, but that doesn't have to apply to all of them. It's the same for every profession. For example, we've all encountered teachers who seem like great people, but there are those whom we wouldn't describe as nicely, too. We can conclude that what we do as our job and what we are like as a person are categories that can, but don't have to be connected.
The word <em>precipitated </em>in this sentence means D) brought about. Because of the incident that happened at school, there was a higher need for more security.
