Hi , I have followed all the instruction but in the drop for the user license dont use Salesforce and without passing this criteria i can not finish my challenge please help me

In Trailhead and Developer Edition orgs there are usually only 2 Salesforce user licenses available. If both are already in use, the Salesforce option won’t appear in the User License dropdown. To fix this, go to Setup → Users, deactivate another user who is currently using a Salesforce license (make sure it’s not your own login), and then create or update the challenge user. After deactivating that user, the Salesforce license will show up in the dropdown and you can complete the challenge.