Explanation:

- Bipasa withdrew 6,000 at the end of each quarter, totaling four withdrawals in a year (on June 30, September 30, December 31, and March 31).

- Interest is calculated on the amount withdrawn at the end of each quarter for the period it's been in use until March 31, 2019.

- Interest for each quarter:

- 1st withdrawal (3 months interest): Interest on 6,000 for 9 months at 10% = \( \frac{6,000 \times 10 \times 9}{100 \times 12} = 450 \)

- 2nd withdrawal (6 months interest): Interest on 6,000 for 6 months at 10% = \( \frac{6,000 \times 10 \times 6}{100 \times 12} = 300 \)

- 3rd withdrawal (9 months interest): Interest on 6,000 for 3 months at 10% = \( \frac{6,000 \times 10 \times 3}{100 \times 12} = 150 \)

- 4th withdrawal (no interest): Interest on 6,000 for 0 months = 0

- Total interest: 450 + 300 + 150 = 900.

- Therefore, the correct option is Option 1: 900