Correct option is C
The following logic is followed in the given question-
[(1st)2 + (2nd)2] = 3rd Number
14, 10, 296 → [142 – 102] = [196 + 100] = 296
8, 17, 353 → [82 – 172] = [64 + 289] = 353
Similarly,
5, 13, 194 → [52 – 132] = [25 + 169] = 194
Thus, the correct option is (c).