what is the definition of bias ?

Bias is when it a person has a feeling, inclination, or prejudice that is for or against someone or something. Hence, Option D is correct.
Prejudice is an assumption, an opinion, an active feeling in which there is a liking or dislike. It can be for one rather than another and based on perceived group membership. The use of the term is often done when there is an evaluation or classification of another person, which is based on various factors.
Factors like gender identity, beliefs, values, social class, age, disability, religion, height, occupation, wealth, education, and many more. For instance, someone may face the situation in which they have been prejudiced against different ethnicity, gender, or religion, a girl is prejudice against department stores, and many more.
Basically, prejudice is a feeling in which there is an unfair dislike that is directed against an individual or a group. Many times, because of the practice of prejudice some people creates controversy.
Thus, Option D is correct.
Learn more about prejudice from here:
https://brainly.com/question/22665804
#SPJ2