Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
linden lab may offer you the opportunity ( directly or through an applicable payment service provider ) to purchase or use virtual credits , points , tokens , services , or items ( `` virtual goods and services '' ) . 

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