Which the Following Constitutes a Probable Case of Disparate Impact

Which the following constitutes a probable case of disparate impact?

A) An organization hires 25 whites and no African-Americans from a pool of 50 white and 50 African-American applicants
B) Female applicants of childbearing age are not hired for jobs requiring the use of chemicals.
C) An organization hires 30 whites and 15 African Americans from a pool of 90 white and 20 African-American applicants.
D) There are different criteria for promotion depending on a candidate's religion.
E) An organization intentionally does not promote employees who are more than 50 years old.