Fluency in reading refers to

Fluency in reading is primarily defined by the ability to read accurately and quickly. This encompasses not just the speed of reading, but also the ability to decode words correctly, which enables a reader to move through text smoothly and efficiently. When readers achieve fluency, they can focus more on comprehension rather than the mechanics of reading, as they recognize words quickly and can predict what comes next in a sentence.

While options related to understanding complex texts, reading aloud with expression, and having a large vocabulary are important aspects of overall reading proficiency, they do not specifically encapsulate the concept of fluency itself. fluency is foundational for developing other skills, including comprehension and expression in reading. Thus, the emphasis on accuracy and speed in reading accurately captures the essence of what fluency entails.