Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
i/we ( * ) hereby give notice that i/we ( * ) cancel my/our ( * ) contract of sale of the following goods ( * ) / for the provision of the following service ( * ) : 

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