Applying successive percentage changes to determine a final value

Verify each metric measurement unit standard independently:

Statement 1: 1 m³ is defined as 1000 dm³. Since 1 dm³ = 1 litre, 1 m³ = 1000 litres exactly. Correct.

Statement 2: By international system definition, 1 metric ton equals exactly 1000 kg. Correct.

Statement 3: 1 hectare is a metric unit of area equal to a square with 100 m sides: 100 m × 100 m = 10000 m². Correct.

All three metric statements are standard physical truths.

Answer: (d).