Simplify the following text for a Grade 9 native English-speaking person.
Original: Any male BahÃ ' Ã , 21 years or older , is eligible to be elected to the Universal House of Justice ; all other positions are open to male and female BahÃ ' Ã s.
Simplified: There is one House of Justice , which BahÃ ' Ã s call the Universal House of Justice , which leads the whole worldwide BahÃ ' Ã community .