Final answer:
The sentence pattern in Faulkner's piece on slide 15 of the PowerPoint is reinforced by using parallel structure.
Step-by-step explanation:
The sentence pattern in Faulkner's piece on slide 15 of the PowerPoint is reinforced by using parallel structure. Parallelism, or the repetition of a word or grammatical construction, creates symmetry and balance in the sentence. It also makes the idea easier to remember and sounds pleasing to the ear. By employing parallel structure, the sentence pattern reinforces the sentence's meaning.