Many commercial vehicles have a speed limiting system that caps their maximum speed at:

The correct response indicates that many commercial vehicles are designed with speed limiting systems that cap their maximum speed at 105 km/h. These systems are implemented primarily for safety purposes, to help prevent accidents that can occur at higher speeds. By limiting the vehicle's velocity, these systems ensure that drivers have better control, which can lead to reduced severity in the event of a collision and promote safer driving practices within the trucking industry.

In the context of commercial transportation, maintaining a consistent and manageable speed is essential not only for the drivers' safety but also for the safety of other road users. The speed limit of 105 km/h is a reasonable compromise that balances the need for timely deliveries with the overarching need for safety.

Other options reflect different speed caps that may not align with the legislation and industry standards for commercial vehicles in Ontario. It is important for drivers and operators to familiarize themselves with specific regulations in their operating jurisdictions since these controls can vary.