Answer:
Arnold should use simple language that highlights the entertainment value of the game.
Step-by-step explanation:
Arnold should try to make his pitch as simple and as interesting as possible. This would make them listen Arnold carefully and learn even more difficult concepts.
Formal academic language will make the children feel bore and their interest will be lost.
Children will not be able to understand Technical language and as result will get impatient and lose their interest and attention.
Children are not much concerned about how popular they game will become. Children will listen to Arnold as long as he entertains them.