Correct Answer - Option 4 : 7653
The pattern followed here is:
The difference between each digit is 1.
Option 1:
9876
9 - 8 = 1
8 - 7 = 1
7 - 6 = 1
Option 2:
8765
8 - 7 = 1
7 - 6 = 1
6 - 5 = 1
Option 3:
5432
5 - 4 = 1
4 - 3 = 1
3 - 2 = 1
Option 4:
7653
7 - 6 = 1
6 - 5 = 1
5 - 3 = 2
Here, Option 4 is not satisfying the condition.
Hence, the correct answer is "7653".
