A change process model should include:

1 – The steps that should be taken to handle the change with any dependences or co-processing defined, including handling issues and unexpected events 2 – Responsibilities; who should do what, including escalation 3 – Timescales and thresholds for completion of the actions 4 – Complaints procedures

A.
1, 2 and 3 only

B.
All of the above

C.
1 and 2 only

D.
1, 2 and 4 only