Written material should be evaluated for the learner’s understanding of the subject.
Correct answer: D. Comprehension allows the learner to explain ideas, make connections, and apply what was read.
Why C is wrong: Reproducing text from memory does not show that the learner understands its meaning.
Revision point: A good evaluation may also consider clarity and logic, depending on the task, but it should not be based solely on the ability to repeat written material.