Final answer:
Service regulations like hours of service for drivers are in place to prevent accidents caused by fatigue, ensuring both worker and public safety.
Step-by-step explanation:
Hours of service regulations are primarily in place because fatigued drivers are more likely to be involved in a crash (option c). The intent of these regulations is to increase road safety by ensuring that drivers get sufficient rest. Over the years, various laws have been passed to protect workers and the public, including those setting minimum hourly wages, maximum hours of work before overtime pay is required, and regulating health and safety conditions in the workplace. This focus on safety extends to specific occupations, such as pilots and truck drivers, where fatigue can have dire consequences not only for the workers but also for public safety. For instance, safety concerns led to the Federal Aviation Administration (FAA) introducing limits on how long a pilot is allowed to fly without an overnight break.