Answer:
C) Although people's moral characters are probably developed before, they get into a business school, it is still useful for business schools to cover ethics, including giving students an idea about the adverse consequences of unethical behavior to themselves, their firms, and the nation.
Explanation:
Usually we all start to develop our moral character at a very young age, when we are basically small children. Our parents are usually our initial role model, the our school, friends and social environment shape and define it. But an individual's moral character is not something fixed, it may change in time, even when we are old. Personal experiences, the media and our experience with institutions (e.g. university or a company where we work) can change our sense morality.
So it is never too late to try to teach moral standards and the negative consequences of unethical behavior since hopefully anyone with a flawed set of moral standards wan change them for better.