Final answer:
An accompanying driver should be seated in the passenger seat next to the applicant, providing guidance and ensuring road safety. In scenarios involving emergency vehicles, the correct action is to stop and let them pass.
Step-by-step explanation:
The question seems to be out of context, given the options provided. However, in general, when referring to an accompanying driver, it typically means an experienced driver who sits in the front passenger seat while the applicant, who is learning to drive, is in the driver's seat. The accompanying driver is responsible for providing guidance and ensuring safety on the road. If the context is related to yielding to emergency vehicles like ambulances, then the correct action would be to stop moving and become stationary to allow the ambulance to pass safely (answer a).