What Is the Major Aim of the Fitness to Stand

What is the major aim of the fitness to stand trial provisions in the Canadian legal system?

A) To protect the general public from dangerous people
B) To protect the fairness of the legal process and to preserve the autonomy of the accused individual
C) To ensure the accused individual is tried in a fair manner and to deliver a correct verdict
D) To ensure that opinions and expertise of mental health professionals are heard by the court