Calvert City's Police Officers Must Successfully Pass a Test to Be

Calvert city's police officers must successfully pass a test to be promoted. The test was job related and professionally developed and validated. This year, the city discovered that African American officers taking the test scored significantly lower than white officers. Therefore, the city did not use the test scores for promotions. The city's decision

A) caused disparate treatment discrimination against the white officers.
B) caused disparate impact discrimination against the white officers.
C) caused both disparate treatment and disparate impact discrimination against the white officers.
D) caused no discrimination against the white officers.