Final answer:
The BEST concluding statement for an informative essay expressing a student's love for math is that math is an exciting subject to study, acknowledging not everyone might feel the same way but emphasizing personal enthusiasm.
Step-by-step explanation:
The sentence that would make the BEST concluding statement for an informative essay on a student's favorite subject in school, which is math in this case, would be option D: “Math may not appeal to everyone, but, to me, it is an exciting subject to study.” This sentence does not force the writer's preference onto the readers and acknowledges that different people have different interests, while simultaneously reinforcing the writer's personal enthusiasm for the subject. It provides a summary that is consistent with the aim of an informative essay, which is to inform rather than to persuade or give a unilateral opinion. Using the concluding paragraph effectively is important to explain the significance of the argument, evoke vivid images or suggest results, and to leave a strong impact on the reader.