Bitter because objective is a like thing to do and nostalgia is like a deja vu
It's a hyperbole. Hyperbolas are meant to create a strong impression of something, but not to be taken literally.
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).
The answer is A. Conflict