Select the triad from among the given options that is analogous to the given triad.

198 – 297 – 594​​

​Given Triad: 198 – 297 – 594

198:
Sum of digits = 1 + 9 + 8 = 18

297:
Sum of digits = 2 + 9 + 7 = 18

594:
Sum of digits = 5 + 9 + 4 = 18

Logic: The sum of the digits for each number in this triad is 18.

Now, let's check the sum of digits for the options:

Option A: 369 – 576 – 747

369:
Sum of digits = 3 + 6 + 9 = 18

576:
Sum of digits = 5 + 7 + 6 = 18

747:
Sum of digits = 7 + 4 + 7 = 18

The sum of the digits for each number in this triad is 18.

Option B: 442 – 513 – 711

442:
Sum of digits = 4 + 4 + 2 = 10

513:
Sum of digits = 5 + 1 + 3 = 9

711:
Sum of digits = 7 + 1 + 1 = 9

The sum of the digits in this option is not 18.

Option C: 125 – 223 – 342

125:
Sum of digits = 1 + 2 + 5 = 8

223:
Sum of digits = 2 + 2 + 3 = 7

342:
Sum of digits = 3 + 4 + 2 = 9

The sum of the digits in this option is not 18.

Option D: 488 – 364 – 299

488:
Sum of digits = 4 + 8 + 8 = 20

364:
Sum of digits = 3 + 6 + 4 = 13

299:
Sum of digits = 2 + 9 + 9 = 20

The sum of the digits in this option is not 18.

Thus, correct option is (a)