Correct Answer: 4367

Solution : Let's check the options –
The first option: 4367; The first and second halves are 43 and 67.
⇒ 67 – 43 = 24 ≠ 13
Second option: 3245; The first and second halves are 32 and 45.
⇒ 45 – 32 = 13
Third option: 6578; The first and second halves are 65 and 78.
⇒ 78 – 65 = 13
Fourth option: 7689; The first and second halves are 76 and 89.
⇒ 89 – 76 = 13

So, the first option differs from the other three options because the difference between the first and the second halves is 24 instead of 13. Hence, the first option is correct.