I believe this would be Position
D. unreliable because his point of view is irrelavant to what he is narrating
A. Because setting rules can let each person in the group get a chance to speak.
Yes I believe that is correct
Answer
What is the "unfinished work" Lincoln mentions in paragraph 3? Four score and seven years ago our fathers brought forth on this continent, a new nation, conceived in Liberty, and dedicated to the proposition that all men are created equal.