How does nick plan for a big funeral go

This question refers to the book The Great Gatsby. Towards the end of the book, we learn that Gatsby has died, as he was shot by George Wilson. Nick decides to plan a big funeral for Gatsby, with lots of people attending. However, his plans go badly. Most of the people who were expected to attend do not want to be mixed up with the murder, or with Gatsby's name any longer. The only people to attend the funeral are Nick, Gatsby's father, the minister, Owl-Eyes, four or five servants and the postman. The people closest to Gatsby (such as Daisy) seem to care about him the least, and we find out that Gatsby's personal connections and friendships were all superficial.

i think the answer would mist likely be an adjective clause, because unhappy is an adjective.