If You Were a Judge in a Court System in Canada

If you were a judge in a court system in Canada, which of the following would not normally be a role that you might be called upon to perform?

A) Deciding whether or not federal legislation interfered with provincial legislative jurisdiction.
B) Deciding whether or not a plumber has the proper qualifications to be granted a license.
C) Deciding whether or not an individual has breached the terms of a contract with another individual.
D) Deciding whether a government agency has interfered with the constitutional rights of a citizen.