💡 Detailed Explanation
The woman is concerned about the person's health, asking if they look unwell. 'Kaoiro ga saenai' is an idiomatic expression meaning to look pale or unhealthy. A natural response is to acknowledge her concern and provide a simple reason, like lack of sleep. Option A takes the phrase too literally, suggesting a makeup solution. Option B mistakes 'saenai' (not bright/well) in the context of health for 'saeta koto' (brilliant/exciting things), which is a different meaning.