Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
you must accept these terms to create a fitbit account and to access or use the fitbit service . 

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