Final answer:
The driver of a commercial vehicle must be better informed about the rules and regulations of safe driving all of the time due to the larger size and complexity of their vehicles, the nature of goods or passengers they may be carrying, and specialized regulations such as CDL requirements.
Step-by-step explanation:
It is d. all of the time that the driver of a commercial vehicle be better informed about the rules and regulations of safe driving than the ordinary driver. Commercial vehicle drivers are responsible for handling larger, more complex vehicles and often transport goods or passengers, which means that their actions can have greater consequences in the case of traffic violations or accidents.
Being thoroughly informed about safe driving rules and regulations is crucial for ensuring road safety for both themselves and other road users. Commercial drivers must be aware of a wide range of rules, from weight and load restrictions to hours of service regulations, that don't apply to ordinary drivers.
They are also required to maintain a commercial driver's license (CDL), which involves additional testing and certification processes. Thus, commercial drivers need to consistently stay better informed about these aspects to operate their vehicles lawfully and safely.