There are four lockers in the supermarket. When you open the cabinet, you find that the first one says: "All the cabinets are filled with shopping bags. " The second one says: "There are shopping gifts in this cabinet. " The third cabinet reads: "There is no food in this cabinet", and the fourth cabinet reads: "Some cabinets do not have shopping bags". If only the description in one cabinet is true, Which of the following must be true? ['There are shopping bags in all cabinets.', 'No shopping bags in all cabinets.', 'No shopping gifts in all cabinets.', 'There is food in the third cabinet.']