Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
by accepting this agreement , you represent that you are at least eighteen ( 18 ) years of age ( or the legal age of majority in your jurisdiction , if greater ) and you have the legal authority to enter into this agreement . 

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