Your answer would be B. He's talking about not being able to prove his age because he hasn't never seen a real record of his birth or anything else that would give him an idea of how old he is, so no real way to actually prove it.
D to create a toms that changes from tense to cooperative.
I think your missing a Statement..
Answer:
D. statement 2 is an objective summary because it introduces the main character and his problem in a thoughtful tone.
