Final answer:
When a driver's arm is extended downward while using hand signals, it indicates an intention to stop or slow down.
Therefore, the correct answer is optiona. Stop
Step-by-step explanation:
When using hand signals while driving, if the driver's arm is extended downward, it means the driver intends to stop or slow down. It is a form of non-verbal communication used to convey intentions to other drivers when turn signals are not functioning or when visibility of turn signals is poor.
Using hand signals can be especially important in situations where clarity of intention is critical, such as when there's poor visibility, or if a vehicle's signaling devices are malfunctioning.
When using hand signals while driving, if the driver's arm is downward, it means stop. This hand signal is used to indicate to other drivers that the vehicle is coming to a stop or is already stationary. It is important to clearly and confidently extend the arm downward to ensure other drivers can see and understand the signal.
Therefore, the correct answer is optiona. Stop