Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
7.4.4 hosts should exercise due diligence and care when deciding who to add as a co-host to their listing ( s ) . 

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