Final answer:
The provided chapters do not contain information about what Tom told Amy the second time he showed her the school, hence an accurate answer cannot be given.
Step-by-step explanation:
The question is asking what Tom told Amy the second time he showed her the school. As provided in the references from the various chapters, none of the provided options (OA. Zak's do-over diary, OB. Simon Marlow's head-start line, OC. Trafford's strict grading policy, OD. Jay's great love of fast food) are mentioned. Therefore, it's not possible to provide an accurate response to this question based on the given excerpts, which seem to be from different literary texts and do not contain the information necessary to answer the question about what Tom told Amy.