Final answer:
The correct response is that the inside vertical edge of your plane (west coast) mirrors should display part of the trailer. This setup is crucial for monitoring your trailer and minimizing blind spots during various driving maneuvers.
Step-by-step explanation:
The correct answer is option b-Part of the trailer. When adjusting the inside vertical edge of your (west coast) mirrors, you should be able to see part of the trailer.
This ensures that you have a good view of the trailer's position in relation to your vehicle and can monitor it during movements such as lane changes, turns, and as you maneuver in various driving situations. It helps minimize blind spots and allows the driver to keep an eye on the sides of the trailer.
In the context of viewing your entire body in a flat mirror, the height of the mirror should be at least half of your height, because the angle of incidence equals the angle of reflection and thus the top and bottom of the mirror will cover the full height of your body from your line of sight.
The height of the mirror necessary to see your full reflection does not depend on how far you stand from it.
The correct answer is option b - Part of the trailer. When adjusting your mirrors in a vehicle, you should be able to see part of the trailer in the inside vertical edge of your plane (west coast) mirrors. This allows you to have a view of the side of the trailer, which is important for safe driving and maneuvering.