Correct option is B
Number: 4713562
Logic:
Add 2 to each even digit
Add 2 to each odd digit
4 (even) → 4 + 2 = 6
7 (odd) → 7 + 2 = 9
1 (odd) → 1 + 2 = 3
3 (odd) → 3 + 2 = 5
5 (odd) → 5 + 2 = 7
6 (even) → 6 + 2 = 8
2 (even) → 2 + 2 = 4
New number formed: 6935784
Sum = (First two digits + Last two digits)
Sum = (6 + 9) + (8 + 4)
Sum = 15 + 12