It can't be A because civil does not mean constitutional
It can't be C because that sounds more like a criminal trial
It can't be D as well, that's corruption/not doing your job correctly
It has to be B as well, civil means citizens (relating to ordinary citizens and their concerns, as distinct from military or ecclesiastical matters - Oxford Dictionary) and B is "disputes between individuals or organizations". Citizens can also be individuals or organizations. We can fact check this via Wikipedia, as they state "Civil law is a major branch of the law. In common law legal systems such as England and Wales and the United States, the term refers to non-criminal law." (Source: Wikipedia, Page: Civil law (common law)). Civil also means non-criminal.
This scenario best illustrates the defense mechanism called sublimation.
Explanation:
Sublimation is replacing socially unacceptable impulses with socially acceptable behavior. For instance, Jeff is channeling aggressive drives into practicing boxing. Thus, sport is an example of putting our emotions (e.g. aggression) into something constructive.