Explanation:

- To arrange the words in logical order based on area from smallest to largest, we start with smaller units and move to larger ones.

- Square Inch is the smallest unit of measure among these.

- Square Feet is larger than a square inch.

- Square Yard is larger than a square foot, as there are 9 square feet in a square yard.

- Acre is larger than a square yard. It's used to measure large land areas and there are 4,840 square yards in an acre.

- Hectare is larger than an acre and is commonly used in land measurement, with one hectare equating to about 2.47 acres.

- Let's look at the options:

- Option 1: 3-5-1-2-4 doesn't correctly order the units.

- Option 2: 3-5-2-4-1 puts hectare before acre, which is incorrect.

- Option 3: 3-5-1-4-2 places acre before hectare, but the order of square yard is incorrect.

- Option 4: 3-5-2-1-4 correctly orders the size from smallest to largest.

- Option 4: 3-5-2-1-4 is the correct order.