Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
if you rely on any fitbit content or the fitbit service , you do so solely at your own risk . 

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