Correct Answer: 390

Solution : Odd numbers→digits end with 1, 3, 5, 7, 9
Even numbers→digits end with 2, 4, 6, 8, 0

Let's check the options –
First option: 1001→ends with 1→Odd number
Second option: 715→ends with 5→Odd number
Third option: 429→ends with 9→Odd number
Fourth option: 390→ends with 0→Even number

So, the fourth option differs from the other options as all are odd numbers except 390. Hence, the fourth option is correct.