Fluency in reading primarily assesses which two aspects?

Fluency in reading is primarily concerned with how smoothly and accurately a student can read text. Specifically, it encompasses two main aspects: rate, which refers to how quickly a student reads, and accuracy, which measures how correctly they pronounce words as they read. High fluency is characterized not just by speed but also by the ability to read with proper expression and understanding, which is facilitated by a good foundation in rate and accuracy. While other options touch upon important reading skills, they do not directly capture the essence of fluency as it relates to the smoothness and correctness of word reading.