Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
such services may not function properly or may become inoperable if these third parties discontinue their services . 

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