On Her Facebook Page Mary Wrote, "I Work for Incompetent

On her Facebook page Mary wrote, "I work for incompetent idiots!" Her employer learned of her comment and fired her on that basis. Which of the following statements is TRUE?

A) As this was done on her own time and not at work, her firing is not justified.
B) Mary has the defense of freedom of speech under the Charter.
C) The firing is justified in law because of a breakdown in the employment relationship.
D) The employer is losing money so Mary cannot be fired for her statements may be true
E) both B and D