Explanation:

- In the given set (269, 278, 296), notice each number increases over the previous one by a specific pattern. The sequence alternates by adding 9, then adding 18.

- 269 + 9 = 278

- 278 + 18 = 296

- Option 1 (313, 322, 340):

- Increases by 9: 313 + 9 = 322

- Increases by 18: 322 + 18 = 340

- This option follows the same pattern as the given set.

- Option 2 (577, 586, 598):

- Increases by 9: 577 + 9 = 586

- Increases by 12: 586 + 12 = 598

- This does not follow the increasing pattern of adding 9 and then 18.

- Option 3 (419, 430, 448):

- Increases by 11: 419 + 11 = 430

- Increases by 18: 430 + 18 = 448

- This does not match the required pattern.

- Option 4 (109, 118, 128):

- Increases by 9: 109 + 9 = 118

- Increases by 10: 118 + 10 = 128

- The pattern changes here and does not meet the expected pattern.