Answer:
Bias.
Explanation:
Source makes no sense, as a source can refer to:
A) A place of origin which information can be obtained.
B) The origin of something or someone.
A citation is:
A) A piece of reliable evidence or information from a worthy source.
And bias is:
A) A prejudice favoring one side or another, depending on the person's viewpoints
B) To give inclination toward a certain opinion (basically the same).
I believe it's foot, i'm new please don't hurt me. Hope it helped.
C. helps to emphasize important points
