Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
at any time prior to order acceptance , we reserve the right to decline or reject your order . 

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