You have an interview screen that collects the attribute ''the person's age in years''. Your customer requires that an error message be displayed if ''the person's age in years'' is less than 0 or greater than 120.
''The applicant will have a good credit score if the applicant has an acceptable number of credit accounts in good standing. The applicant has an acceptable number of credit accounts in good standing if the applicant has 3 or more credit accounts with a positive balance''.
Suppose that you need to model whether the applicant will have a good credit score in a single rule.
What style should ''the applicant has 3 or more credit accounts with a positive balance'' be modeled in?