It would be cookies cause its the only plural thing and its a noun
The plot of "The Signalman" reaches a climax when signalman dies. As you know, the main characteristic of climax is that it is the most emotional part of a story that provides a lot of interest and suspense to a reader. The death of signalman is the highest point of emotional intensity of the plot as the loved protagonist unexpectedly (or undesirably) passes away and put an end to the story.
Writers should include references to their research in an argument because it adds credibility to the argument to the argument they wish to prove.
