Correct option is C
Given:

Concept:
The pattern followed is, Column wise:
(First Number × 2 + Second Number × 2 + 1 = Third Number)
Calculation:
For row 1:
7 × 2 + 2 × 2 + 1 = 14 + 4 + 1 = 19
For row 3:
3 × 2 + 5 × 2 + 1 = 6 + 10 + 1 = 17
Similarly,
For row 2:
6 × 2 + 1 × 2 + 1 = 12 + 2 + 1 = 15
Therefore, the correct answer is 15.






