The Motor Carrier Act of 1980 requires that certain minimum liability insurance limits be maintained on vehicles meeting certain requirements. Which one of the following best identifies one of those requirements? Select one: A. Trucks for hire used for intrastate transportation of any type of material B. Trucks of 10,000 pounds or more gross weight, regardless of cargo C. Trucks of 10,000 pounds or more gross weight used to transport certain hazardous cargoes in bulk D. Trucks that transport cargo in bulk, regardless of vehicle gross weight