What is the main difference between the Pan American games and Olympic games?

1: The pan american games are held every 6 years, while the olympic games are held every 4 years

2: The pan american games are held in buenos aires,argentina, while the olympic games are held in different cities all over the world.

3: Only countires in the americas and caribbean participate in the pan american games while the olympic games are international

4: the pan american games do not allow proffesional athletes to compete, while the olympic games do.

The correct answer is:

3: Only countries in the Americas and Caribbean participate in the Pan American Games, while the Olympic Games are international.