An NEC$4$ Engineering and Construction Contract Option A including secondary Options X$8,$ X$13$ and X$15$ has been awarded for the construction of a new $6\mathrm{.}5$m single carriageway road. The Scope states the Contractor is to design the whole of the works. The Contractor plans to subcontract a substantial amount of the work and appoint a consultant to carry out the design.

QUESTION $17$

Six months after the starting date, the Contractor's construction manager has an accident and cannot work for at least the next month. The construction manager is a key person. Which of the following statements best describes what the Contractor should do next?

Select ONE option.

Notify an early warning and submit to the Project Manager details of the person who can temporarily replace the construction manager.

Notify the Client that the key person will be changing and submit a revision to Contract Data part two to the Client for approval.

Inform the Project Manager that the construction manager cannot work for at least the next month.

Replace the construction manager with another person without informing the Project Manager.

Do nothing, the construction manager will be back to work at some point.