Final answer:
The sentence 'School sports are fun because of the camaraderie, increased strength, and competition.' reflects parallel structure by using consistent grammatical forms, which is important for clear and effective communication.
Step-by-step explanation:
The answer to the student's question about which sentence reflects parallel structure is: "School sports are fun because of the camaraderie, increased strength, and competition." This sentence uses parallelism by maintaining the same grammatical structure (nouns) throughout the series. Parallelism creates symmetry, balance, and makes ideas easier to remember, which is important for effectively communicating an argument or point. In contrast, the other sentences mix gerunds (verb forms ending in -ing) with nouns, which breaks the parallel structure.
Parallel structure is often used in both writing and speech for emphasis and organization. For example, John F. Kennedy's inaugural address and writing in general benefit from the use of parallelism to clearly express ideas and connect with the audience. In academic settings, parallel structure can improve the readability and persuasiveness of a thesis statement or any other scholarly work.