Definition of bias: Some skirts are cut at angles one side is higher than the other. Bias is much like those skirts it is unequal. It can be a prejudice or a tendency.
D. is wrong. Although bias is an interpretation of something.. it lacks the whole definition.
C. Anything can be a negative opinion this does not fully describe bias.
B. this is in no way related to the word bias.
The correct answer is A.
