Answer:
The narration affects Oskar’s credibility in this excerpt because his efforts to heal render him earnest and genuine.
Step-by-step explanation:
Extremely Loud and Incredibly Close is a story about how to cope with a loss and it is narrated from the point of view of Oskar, a little kid who is coping with the tragic loss of his father. Since it is narrated in a first-person perspective it makes the character very fragile and open to the reader, we can see in this excerpt how he tries to overcome the pain.