Final answer:
True. Drivers under age 20 are prohibited from using their cell phone while driving except in the case of an emergency.
Step-by-step explanation:
In most cases, drivers under the age of 20 are prohibited from using their cell phones while driving, except in the case of an emergency. This means that the statement 'Drivers under age 20 are prohibited from using their cell phone while driving except in the case of an emergency' is TRUE.