Concept:Silent reading is a skill where the reader understands text without speaking, which builds reading efficiency.Explanation:During silent reading, students focus on meaning without vocalizing words. This practice trains the brain to process text directly. It improves reading fluency, accuracy, and speed. Vocabulary and comprehension also develop naturally. Silent reading allows self-paced learning and deeper understanding. It avoids the slow pace of oral reading. Thus, the key benefit is that it promotes fluency and accuracy in reading.Answer:A. promotes fluency and accuracy.