Step 1: Understanding proximate analysis.
- Proximate analysis measures the basic macronutrient components of food: moisture, fat, protein, carbohydrates, and ash.
Step 2: Explanation of incorrect options.
- Fat (B), Carbohydrates (C), and Protein (D) are all measured in proximate analysis.
- Amino acid composition (A) is not part of proximate analysis, which measures total protein, not its amino acid profile.
Step 3: Selecting the correct option.
Since amino acid composition is not part of proximate analysis, the correct answer is (A) Amino acid composition.