Final answer:
A roll cage is positioned above your shoulder in a vehicle for safety purposes to protect occupants during rollovers or serious collisions by maintaining the compartment's structural integrity.
Step-by-step explanation:
In which situation is a roll cage stacked above your shoulder? The correct answer is b) In a vehicle for safety purposes.
A roll cage is a safety feature installed in many types of vehicles, particularly those used for racing or off-road driving. Its main purpose is to protect the occupants by maintaining the structural integrity of the passenger compartment in the event of a rollover or serious collision. The roll cage is designed to be above the driver's and passengers' shoulders to provide maximum protection, as it creates a reinforced frame around them.