Milk fat (ghee) is chemically unique among all natural edible dietary fats because of its high content of short-chain saturated fatty acids ($C_4$ to $C_{10}$: butyric, caproic, caprylic, capric acids) and medium-chain fatty acids ($C_{12}$ to $C_{14}$: lauric and myristic acids), which together constitute over $15\%$ to $25\%$ of total fatty acids. In contrast, non-ruminant animal depot fats like Lard (pig fat), Tallow (beef fat), and Fish oil consist almost entirely of long-chain fatty acids ($C_{16}$ to $C_{22}$) and contain negligible ($\lt 0.5\%$) short-chain fatty acids.

Option analysis:

• Ghee: Correct. Contains the highest proportion of short and medium-chain saturated fatty acids (over $10\text{ to }15\text{ g/100g}$).
• Lard: Incorrect. Negligible short-chain fatty acids.
• Tallow: Incorrect. Dominated by long-chain stearic, palmitic, and oleic acids.
• Fish oil: Incorrect. Dominated by long-chain polyunsaturated fatty acids (EPA and DHA).