Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
any attempt by you to assign or transfer these terms , without such consent , will be null . 

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