Concept:Benedict’s reagent detects reducing sugars by changing colour and forming a brick-red precipitate.Explanation:Reducing sugars give a positive Benedict’s test.Glucose, fructose, and galactose are all reducing sugars.Sucrose is a non-reducing sugar because it does not have a free aldehyde or ketone group.Therefore, sucrose will give a negative reaction with Benedict’s reagent.Answer:D. Sucrose