A project is using a productive infrastructure in a large operating environment. The project is an accident occurred at this time, but a technical solution is implemented to resolve the problem. Despite the circumstances a project stakeholders are still complaints because:
A、The project sponsor had not received any notification, and without the approval of the chosen option.
B、 The risk was not identified and assessed, and update in the risk log.
C、 The change control board was informed, and the incident was not evaluated.
D、 The change created a risk that could have caused a major operational impact.