Final answer:
The correct answer is Option 1: Brake light, which is the light that must come on when the foot brake is pressed in a vehicle. Brake lights are a crucial safety feature that signals to other drivers that the vehicle is slowing down or coming to a stop.
Step-by-step explanation:
When the foot brake is pressed in a vehicle, the light that must come on is the brake light. This is the correct answer to the question presented, which is Option 1: Brake light. The purpose of the brake light is to signal to other drivers that the vehicle is slowing down or stopping. Unlike the headlights, turn signal lights, or reverse lights, the brake lights are activated when the driver applies pressure to the brake pedal. These lights are a critical safety feature as they communicate the driver's intentions to other road users, thereby helping to prevent collisions.
Although the additional information regarding stopping distances is not directly relevant to this specific question, it is worth noting that when driving, understanding the total stopping distance is important for safety. Total stopping distance includes the distance covered by the driver before hitting the brakes (perception distance), the time it takes to actually apply the brakes (reaction distance), and the distance the vehicle travels while coming to a stop (braking distance). Knowing these distances and the factors that affect them, such as vehicle speed, road conditions, and vehicle condition, is essential for safe driving practices.