5 What is the main idea of this story? A) Neil Green, the leader of a coding challenge, is disturbed and upset by a hacker's attempts to stop the coding challenge. (B) Julia is able to fix things when a hack deletes all the apps for a coding competition, but the hacker then shuts down the university's power grid. (C) "Julia Sheen the Coding Queen" became such a successful and confident coder by studying computers for a long time. (D) Many universities are run like small cities in that they have their own power grids which power everything on the university's campus.

To determine the main idea of the story, we need to analyze the options provided: A) This option focuses on Neil Green's emotional response to a hacker's interference in the coding challenge. While it highlights a conflict, it may not encompass the broader theme of the story. B) This option describes Julia's actions in response to a hacking incident that affects a coding competition and escalates to a power grid shutdown. It suggests a narrative of problem-solving and escalating challenges, which could be central to the story. C) This option emphasizes Julia's journey to becoming a successful coder, focusing on her dedication and confidence. While it highlights her character development, it may not capture the main conflict or plot of the story. D) This option provides a factual statement about universities and their power grids. It lacks a narrative element and does not seem to relate directly to the characters or events of the story. Based on this analysis, the most comprehensive option that captures the main idea of the story is: **B) Julia is able to fix things when a hack deletes all the apps for a coding competition, but the hacker then shuts down the university's power grid.** This option encapsulates the central conflict and the protagonist's role in addressing it, making it the best choice for the main idea of the story.