An aeroplane has a pilot, two passengers and one infant. The aeroplane is not a balloon. What seats and safety belts must it have?

1. 1One seat for each person and one safety belt for the pilot only
2. 2One seat for the pilot only
3. 3One seat and safety belt for each person, including the infant
4. 4One seat and safety belt for the pilot and each passenger who is not an infant

Source: Canadian Aviation Regulations (SOR/96-433), CAR 605.22(1) Seat and Safety Belt Requirements