Which of the following is an example of a control break report?

a. A list of all customers of a business in zip code order, with a count of the number of customers who reside in each zip code

b. A list of all students in a school, arranged in alphabetical order, with a total count at the end of the report

c. A list of all employees in a company, with a “Retain” or “Dismiss” message following each employee record

d. A list of medical clinic patients who have not seen a doctor for at least two years