A Lawful Strike May Not Occur

A lawful strike may not occur

A) after all required third-party assistance has been attempted.
B) in certain jurisdictions before a first collective agreement has been negotiated.
C) when a collective agreement is not in effect.
D) unless it is limited to the premises of the employer.
E) unless it is limited to the premises of the employer and in certain jurisdictions before a first collective agreement has been negotiated.