When flares are necessary around a truck, where should the additional two flares be placed in relation to the vehicle?

Answer: B — 100 feet to the front and rear of the vehicle

Placing additional flares 100 feet to the front and rear of the vehicle is crucial for ensuring visibility and warning other drivers of the stopped truck's presence. This distance is recommended because it provides ample warning for approaching vehicles, allowing them to notice the situation in advance and make any necessary decisions to change lanes or reduce speed. By positioning the flares at this distance, especially on busy roads or highways, it helps create a safety buffer around the truck, enhancing the overall safety of the scene. Proper placement of flares is essential in reducing the risk of accidents and ensuring the safety of both the driver and any other road users nearby. Other placement options, such as 50 feet, may not provide enough warning, particularly at higher speeds, while placing flares in the vehicle's passenger compartment does not serve any purpose, as that would not alert approaching traffic. Additionally, positioning them 200 feet on either side may be excessive in most situations, as it could lead to flares being too far from the vehicle to effectively warn oncoming traffic.