What must be done with a bicycle when making a turn?

Answer: A — Signal the turn with hand gestures

Signaling a turn with hand gestures is essential for cyclists. Just like drivers use turn signals to communicate their intentions on the road, cyclists must also alert those around them—whether they are other cyclists, motorists, or pedestrians—of their planned movements. This communication helps prevent accidents and ensures that everyone on the road is aware of each other's actions. While it’s important for cyclists to be vigilant and look out for other vehicles, signaling their intentions is equally crucial for safety and clarity in shared spaces. Riding a bicycle on sidewalks is often not permitted in certain areas and can lead to conflicts with pedestrians. Similarly, while yielding to pedestrians is a vital part of cycling etiquette, it is not the primary focus when making a turn. However, signaling is a direct and effective way to ensure that cyclists safely navigate turns while informing others of their intentions.