What Did the Supreme Court Rule in Fraser V Public

What did the Supreme Court rule in Fraser v Public Service Staff Relations Board?

A) That public servants should be allowed non-job-related criticism of government policy
B) That the claimant should be prohibited from running for public office
C) That the claimant was not engaged in "whistleblowing"
D) That the prohibitions were "over-inclusive and went beyond what is necessary to achieve the objective of an impartial civil service"
E) That public servants should not be allowed to discuss non-job-related government policy