Correct Answer: D

Rationale: Based on the provided extract, sleeping helps with fatigue, memory, and learning. The passage mentions how a nap can refresh the brain, improve the ability to learn and remember, and enhance memory. However, the extract does not mention anything about sleeping helping with appetite. Therefore, the correct answer is D. Choices A, B, and C are supported by the content of the passage, emphasizing the positive effects of sleep on fatigue, memory, and learning.

Correct Answer: C

Rationale: In this context, 'admonition' means a caution or warning, not permission, prescription, or verdict. The excerpt mentions that along with advising the elderly to move slowly and carefully, the CDC also recommends gentle exercise or physical therapy to strengthen muscles and improve balance. This advice aims to reduce the risk of falls and boost the self-esteem of older adults. Therefore, 'admonition' here refers to a precautionary counsel rather than granting permission, prescribing a treatment, or giving a verdict.

Correct Answer: A

Rationale: In this context, 'lethargy' refers to a state of sluggishness or lack of energy. The passage mentions that people with seasonal affective disorder (SAD) struggle with lethargy and chronic fatigue, impairing their daily lives. Therefore, the correct definition of 'lethargy' in this context is 'sluggishness.' Choice B, 'Irritability,' is incorrect as lethargy refers more to a lack of energy than to being irritable. Choice C, 'Energy,' is the opposite of lethargy. Choice D, 'Starvation,' is unrelated to the definition of lethargy in this context.

Correct Answer: D

Rationale: Based on the provided extract, sleeping helps with fatigue, memory, and learning. The passage mentions how a nap can refresh the brain, improve the ability to learn and remember, and enhance memory. However, the extract does not mention anything about sleeping helping with appetite. Therefore, the correct answer is D. Choices A, B, and C are supported by the content of the passage, emphasizing the positive effects of sleep on fatigue, memory, and learning.

Correct Answer: D

Rationale: The correct answer is D. While the passage extensively discusses the benefits and applications of phototherapy, it does not mention that ultraviolet rays can cause damage to eyes and skin. This statement goes beyond the information provided in the passage and cannot be inferred. A. The passage mentions that phototherapy has been around for more than a century, supporting the statement that some forms of phototherapy have been around for decades. B. The passage discusses how new applications of phototherapy, like the phototherapy blanket, are being developed, making this statement valid as it aligns with the information provided. C. Phototherapy being most often used to treat skin problems is supported by the passage, which mentions its applications in treating acne, psoriasis, and eczema. Therefore, this statement can be inferred from the passage.