Step 1: Understanding the Concept:
Standard regulatory specifications (such as FSSAI in India and Codex Alimentarius globally) define dried milk powders based on their milk fat and protein contents on a mass-by-mass (\(\text{m/m}\)) basis.
Step 2: Detailed Explanation:
Let us match each dried milk product with its legally defined fat percentage:
1. Whole milk powder (A): This product is manufactured by drying whole milk, retaining most of the fat.
Under FSSAI standards, its fat content must be a minimum of \(26.0\%\) but must remain below \(42.0\%\) by mass (A-IV).
2. Partially skimmed milk powder (B): This powder is produced from partially skimmed milk.
Its fat content ranges between that of skimmed and whole milk powders, legally defined as more than \(1.5\%\) and less than \(26.0\%\) by mass (B-III).
3. Skimmed milk powder (C): This product is dried from skim milk, where almost all milk fat has been separated.
Its fat content is limited to a maximum of \(1.5\%\) by mass (C-II).
4. Cream powder (D): This high-fat powder is produced by drying cream.
It must contain a high fat concentration, specified as a minimum of \(42.0\%\) by mass (D-I).
Step 3: Final Answer:
The correct matching sequence is: (A) - (IV), (B) - (III), (C) - (II), (D) - (I).