Concept:
FSSAI sets the standards for various dairy products in India.
• Skim Milk: Milk from which almost all fat has been removed.
• SNF: Solids-Not-Fat (protein, lactose, minerals).
• Evaporated Milk: Condensed milk that has had water removed.
Step 1: Analyzing Skim Milk fat content.
By definition, skim milk must have negligible fat.
The FSSAI limit for fat in skim milk is not more than 0.5%.
Step 2: Analyzing the concentration of solids.
When milk is evaporated, the concentration of SNF increases.
For evaporated skim milk, the minimum required SNF is 20%.
Step 3: Matching the values.
The pair (0.5% fat and 20% SNF) matches the legal standard.
Final Answer: (A)