An air conditioner manufacturer recommends that its portable units provide between 4 and 6 BTUS of cooling per cubic foot to operate most efficiently. Which statement is true? O A 16,000-BTU air conditioner meets the manufacturer recommendation for a room measuring 20 feet by 20 feet with a standard 8-foot ceiling. O A 14,000-BTU air conditioner meets the manufacturer recommendation for a room measuring 10 feet by 20 feet with standard 8-foot ceiling. A 20,000-BTU air conditioner will be too large for a room measuring 20 feet by 40 feet with an 8-foot ceiling. O A 12,000-BTU air conditioner will be too small for a room that is 15 feet by 10 feet with a 10-foot ceiling.