In which case is it allowed to transport passengers outside the cab of a vehicle?

• 1In the body of a truck with a flat-bed platform that is equipped for transporting passengers.
• 2In the van body of a truck that is equipped for transporting passengers.
• 3In the bed of a tractor.
• 4Answers 1 and 2.
• 5Answers 1, 2, and 3.