A user is present when a technician is troubleshooting their workstation. They insist on showing the technician, step by step, what occurred. How should the technician deal with this situation? ()

A、Allowtheusertodemonstrateexpertise.
B、Donotargue;empathizewiththeuser,andoffertohelp.
C、Asktheusertowatchasthetechniciandiagnosesandcorrectstheproblem.
D、Documenteachofthestepstoreplicateatalatertime.