Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
you may not post , modify , distribute , or reproduce in any way any copyrighted material , trademarks , or other proprietary information belonging to others without obtaining the prior written consent of the owner of such proprietary rights . 

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