Answer:
D) there's a hidden attitude.
Step-by-step explanation:
You should start to suspect that there is something about you that your supervisor doesn't like and he/she is not willing or able to deal with it due to legal implications, e.g. racial or gender discrimination.
Hidden attitudes are generally negative, since any positive attitude should not represent a problem, and they include feelings of prejudice (racial, ethnic and sexual), sexual intentions, etc.