The correct answer is: None of these
The Loco Pilot and Guard shall ensure safety of the train and take the train upto the next station where the train examiner is available.
The train examiner is a railway official who is responsible for inspecting the brakes of trains before they are allowed to depart. If the train examiner is not available, the Loco Pilot and Guard must ensure the safety of the train by taking it to the next station where the train examiner can inspect the brakes.
The options A, B, and C are incorrect because they do not reflect the correct procedures that must be followed in this situation.