117As a motorcyclist, seeing the vehicle in front slowing down, what action should you take at this moment? (A) Slow down and proceed carefully, wait for the oncoming vehicle to clear, and then overtake from the left lane when safe. (B) Sound the horn once or flash the overtaking lights； after the vehicle in front signals to let you pass, overtake from the right. (C) Slow down, observe the movements of the vehicle in front, and monitor traffic conditions within your line of sight, while being prepared to stop at any time.