Final answer:
The correct answer is option D: Both A and B.
Step-by-step explanation:
The correct answer is option D: Both A and B.
Blind-side jackknife backing refers to the maneuver of reversing a trailer into a tight space on the opposite side of the driver (the blind side).
When performing blind-side jackknife backing, it is crucial to have the assistance of a spotter. The spotter can provide guidance and help the driver avoid obstacles.
Additionally, stopping every few feet to check for clearance is recommended. This allows the driver to assess the angle and make adjustments if necessary.
The correct answer is option D. Both A and B. When performing a blind-side jackknife backing, it is highly recommended to have a spotter to assist the driver.
The spotter can provide live feedback about the vehicle's position and potential hazards that the driver may not be able to see. This reduces the risk of an accident or damage to the vehicle or property.
Furthermore, it's essential to stop every few feet to check your clearance, ensuring that the trailer does not hit anything and has enough space to complete the backing maneuver safely.
An angle greater than 90 degrees is not preferred because it increases the difficulty of controlling the vehicle and can lead to jackknifing, hence making option C incorrect.