Final answer:
Commercial drivers cannot use handheld electronic devices while driving according to the Distracted Driving Law; other actions like eating, changing the radio, or using hands-free devices are not explicitly banned, but should be performed cautiously.
Step-by-step explanation:
According to the Distracted Driving Law, commercial drivers are prohibited from engaging in certain activities to ensure their full attention remains on driving. The activities they cannot do while driving include:
Use a handheld electronic device
It is important for commercial drivers to follow these laws for their safety and the safety of others on the road. The other options provided, such as eating or drinking (b), adjusting the vehicle's radio (c), and communicating using a hands-free device (d), are not explicitly prohibited by the Distracted Driving Law, though they should be done with caution to avoid distraction.