Solution:The pattern followed here is :(a, b, c) → {(a - 1) × (c - 1)} = b
(23, 308, 15) → {(23 - 1) × (15 - 1)} ⇒ 22 × 14 = 308
(18, 187, 12) → {(18 - 1) × (12 - 1)} ⇒ 17 × 11 = 187
Similarly,
(14, 104, 9) → {(14 - 1) × (9 - 1)} ⇒ 13 × 8 = 104
Hence, "(14, 104, 9)" is the correct answer.