Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
airbnb will use commercially reasonable efforts to address hosts ' requests and claims related to security deposits , but airbnb is not responsible for administering or accepting any claims by hosts related to security deposits . 

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