What indicates that a turn signal is burning out?

Answer: B — It will blink faster and click very fast

When a turn signal is burning out, the typical indication is that it blinks faster than usual and may produce a clicking sound at an accelerated rate. This occurs because the electrical resistance in the circuit changes when the bulb is partially functioning or nearing failure. The vehicle's turn signal system is designed to alert the driver to a malfunction by increasing the flashing rate of the signal to indicate that one of the bulbs is not operating correctly. Choosing this answer reflects an understanding of the vehicle's signaling system and the importance of maintaining functional turn signals for safety on the road.