Explanation:

To determine the percentage change in the company's current liabilities:

- Initial liabilities: Rs. 4,00,000

- Final liabilities: Rs. 3,00,000

Steps to calculate percentage decrease:

- Calculate the change in liabilities: Rs. 4,00,000 - Rs. 3,00,000 = Rs. 1,00,000

- Percentage change formula: (Change / Original amount) x 100

- Inserting values: (Rs. 1,00,000 / Rs. 4,00,000) x 100

Calculation:

- Change Percentage: 0.25 x 100 = 25%

Option 1 is correct:

?? 25% decrease accounts for the change from Rs. 4,00,000 to Rs. 3,00,000.

?? Other options (33.3%, 20%, 40%) do not fit the calculation.

Therefore, Option 1 (25%) is the correct answer.