Make Me A Star Productions runs an annual talent competition for aspiring amateur singers. Four business rules have been identified: 1) A contestant is allowed to sing 1 or 2 songs in a performance…

Make Me A Star Productions runs an annual talent competition for aspiring amateur singers. Four business rules have been identified: 1) A contestant is allowed to sing 1 or 2 songs in a performance. 2) An audition may be attended by up to 50 contestants. 3) A contestant is always given an audition. 4) A song can only be used in one performance. Which of these business rule(s) can be found to be correctly represented in the class diagram?