Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
basic accounts may be deleted from the vimeo service if they remain inactive ( i.e. , the user fails to log in ) for a continuous period of at least six ( 6 ) months . 

```
. OPTIONS: ['None' 'Contract by using' 'Jurisdiction' 'Unilateral change'
 'Arbitration' 'Unilateral termination' 'Limitation of liability'
 'Choice of law' 'Content removal'].