Which of the Following Would End the Employment Relationship by Breach,thus

Which of the following would end the employment relationship by breach,thus possibly giving rise to a claim for damages for wrongful dismissal?

A) The employee is told he will no longer be needed at the end of the period of employment specified in the contract-e.g., one year.
B) The employee is told he will no longer be needed at the completion of the specific job he was hired to do-e.g. paint a bridge.
C) The employee is asked to leave because he consistently comes to work late as a result of frequent morning traffic jams.
D) The employee is asked to leave because a downturn in the economy has resulted in no work for him to do.
E) The employee is asked to leave after he refuses to do a reasonable but unpleasant task that is part of his employment, when another more junior employee could have been asked to do it.