What is a risk of riding too close to a parked car?

Riding too close to a parked car poses a significant risk because the car's door may open unexpectedly. This can create a sudden and hazardous situation for a motorcyclist, often referred to as “dooring.” If a driver or passenger opens the door without checking for oncoming traffic, a motorcyclist may not have enough time to react or maneuver around the door, potentially leading to a serious collision. This risk emphasizes the importance of keeping a safe distance from parked vehicles to ensure enough space for unexpected actions by others nearby.

The other choices, while they may highlight potential concerns, do not directly address the immediate and critical hazard that the opened door presents in this context. A motorcyclist should always be aware of their surroundings and anticipate possible dangers, especially when navigating through areas with parked vehicles.