After being referred by a friend, Shabina attended a job interview. She didn't feel it went well, but was surprised when her friend told her the boss didn't like that she had worn her hijab, a traditional headscarf, saying "our customers prefer working with Christians". This is an example of
A. affirmative action.
B. quid pro quo.
C. discrimination.
D. hostile work environment.
E. favoritism.
Answer: C. discrimination