Which of the following is a valid reason to have your driver's license suspended?

Accumulating too many demerit points is a valid reason for having your driver's license suspended because it reflects a pattern of unsafe driving behavior. Each infraction adds points to a driver's record, and when these points exceed a predetermined limit set by authorities, it indicates a significant risk to road safety. The demerit point system is designed to encourage responsible driving; thus, exceeding the limit can lead to sanctions such as suspension to help ensure the safety of the driver and others on the road.

In contrast, while ignoring a traffic light or refusing to provide identification can lead to specific penalties, they typically do not directly result in a license suspension unless they contribute to a broader pattern of violations. Parking violations, while potentially leading to fines or other penalties, generally do not affect a driver's demerit point total and therefore do not result in a license suspension.