Which of the Following Scenarios Is an Example of Discrimination

Which of the following scenarios is an example of discrimination in a disparate treatment?

A) An employee requests off from work because of a religious holiday. The manager agrees but asks the employee to make up the work the employee will miss.
B) An organization requires all newly hired employees to have college degrees even though a degree is not needed to perform all jobs within the organization.
C) An employee requests off from work because of a religious holiday. The manager agrees but scrutinizes the work the employee does after the holiday. The manager does not inspect the work of other employees who did not ask off for the holiday.
D) An organization requires all newly hired employees to have college degrees for certain positions within the company.