Step 1: Understanding the Concept:
Fat-soluble vitamin concentration in lipid matrices: commercial dairy butter contains concentrated milk fat ($80\%$) delivering over 600--900 $\mu$g/100g of retinol equivalents and $eta$-carotene.
Key Formula or Approach:
\[ \text{Vitamin A / Carotene Density: Butter } (\mathbf{600 - 900\;\mu\text{g RE / 100g}}) \gg \text{Egg } (140\;\mu\text{g}) > \text{Cabbage} > \text{Tofu} \]
Step 2: Detailed Explanation:
Evaluating Vitamin A and $\beta$-Carotene concentrations across food commodities:
1. Butter (D): Produced by churning cream into concentrated milk fat ($80 - 82\%$ fat). Because $\beta$-carotene and retinol are strictly fat-soluble, butter concentrates the lipid fraction of milk, delivering approximately 650 to 900 $\mu$g of Retinol Equivalents (Vitamin A $\beta$-Carotene) per 100 grams (giving table butter its natural golden color).
2. Whole Egg: Contains $\approx 140\;\mu\text{g RE / 100g}$.
3. Cabbage Tofu: Negligible Vitamin A/carotene compared to dairy fats.
Step 3: Final Answer:
Hence, Butter contains the maximum amount of Carotene/Vitamin A, corresponding to option (D).