<p>The use of high-quality yet <strong>inexpensive</strong> raw materials led to a cost reduction for Mr. Miller's factory.</p><p>In this sentence, the word "yet" indicates a contrast between high-quality and something else. The word "inexpensive" fits this context because it suggests that the raw materials are not expensive, despite being high-quality. The other options do not convey the same meaning:</p><p>(A) "Incomplete" does not make sense in this context because it does not describe the cost or quality of the raw materials.</p><p>(B) "Inferior" means of lower quality or value, which contradicts the description of the raw materials as high-quality.</p><p>(C) "Inexpensive" is the correct answer because it suggests that the raw materials are not expensive, despite being high-quality.</p><p>(D) "Profitable" does not accurately describe the raw materials. While using inexpensive raw materials may lead to profitability for Mr. Miller's factory, the sentence does not explicitly mention profitability as the reason for the cost reduction.</p>