Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
( a ) headspace account holders may access the products in two ways : 

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