8. The details of Gatsby’s funeral are left to Nick. Why?

From the text:

But all this part of it seemed remote and unessential. I found myself on Gatsby’s side, and alone. From the moment I telephoned news of the catastrophe to West Egg village, every surmise about him, and every practical question, was referred to me. At first I was surprised and confused; then, as he lay in his house and didn’t move or breathe or speak, hour upon hour, it grew upon me that I was responsible, because no one else was interested — interested, I mean, with that intense personal interest to which every one has some vague right at the end.