Correct option is B
Logic: The sum of the place value of each letter in each row is 10.

In 1st Row: D + A + ? + B = 10
4 + 1 + ? + 2 = 10
? = 10 - 7
? = 3
The letter with place value of 3 is 'C'
In 2nd Row: G + A + B = 10
7 + 1 + 2 = 10
10 = 10
In 3rd Row: D + F = 10
4 + 6 = 10
10 = 10
In Top Row: J
J = 10
Thus, the correct option is (b) C







