Final answer:
Correct answers are that fats are typically solid at room temperature while oils are liquid, both are composed of triglycerides, and both serve as concentrated energy sources in the diet. Oils tend to contain more unsaturated fatty acids, and hence have lower melting points, not higher, as compared to fats.
Step-by-step explanation:
Which of the following options correctly describe fats and oils? A) Fats are typically solid at room temperature, while oils are liquid is correct because fats have a higher proportion of long-chain saturated fatty acids which give them a higher melting point, while oils contain more unsaturated or short-chain saturated fatty acids and remain liquid. B) Both fats and oils are composed of triglycerides is also correct as they are both esters derived from glycerol combined with three fatty acid molecules. C) Fats contain a higher percentage of unsaturated fatty acids compared to oils is incorrect; it is the reverse - oils tend to have a higher percentage of unsaturated fatty acids. D) Oils have a higher melting point than fats is incorrect; oils actually have a lower melting point which is why they are often liquid at room temperature. Finally, E) Both fats and oils serve as concentrated sources of energy in the diet is correct as they both provide energy and are essential constituents of a healthy diet.