Concept:Open-book exams assess deeper understanding and application, not just memory recall. They allow students to use resources to solve problems.Explanation:Statement a is correct because open-book questions test how well a student understands concepts, not just memorization. Statement c is true because knowing resources are available reduces anxiety. Statement d is also correct because students do not need to memorize everything; they can refer to materials. Statement b is false: open-book questions are not unfair to bright students. In fact, they require higher-order thinking and benefit all students who understand the material. The spirit of open-book assessment is to promote conceptual learning, reduce fear, and remove the burden of rote memorization.Answer:B. a, c, d