Final answer:
The three point turnabout is a maneuver used to turn a vehicle around in a limited space by making three separate movements and is only recommended in areas of light traffic.
Step-by-step explanation:
The maneuver that is only used in light traffic and involves blocking at least one traveling lane is A) Three point turnabout. This maneuver is a method used to turn the vehicle around in a limited space by making three separate movements.
The driver first drives to one side of the road and turns the vehicle towards that side. Then, the driver reverses into the opposite side of the road and finally drives forward in the opposite direction. It is considered risky and thus recommended to be used only in conditions of light traffic, where it causes minimal disruption to other road users.
The maneuver that is only used in light traffic and involves blocking at least one traveling lane is the Three point turnabout. This maneuver is also known as a three-point turn or a Y-turn. It is performed by making a series of steering and reversing movements to turn the vehicle around and change its direction. It is commonly used when the driver needs to turn around on a narrow road or in a situation where it is not safe or practical to make a U-turn.