Ted here from Shopify, thanks for posting your query!
It looks like 'Retail' as shown in the second screenshot should suffice. What happens after you select this option?
More info regarding Employer Identification Number's can be found here for anyone that is looking for more info.
I went to the IRS website to the EIN section I picked Sole Proprietor since this is my first time doing a business I don't have any employees, filled in my SSN and address, but the thing is it didn't show me what kind of business I was doing it just shows details and on the next tab it shows EIN confirmation?
Thanks for sending those screenshots! It appears as though you are doing it correctly, so could be that the tutorial you were following previously needs to be updated. That said, we would always recommend contacting IRS' customer support for more info if you're unsure.
If there is anything else I can help you with, please let me know, I'm happy to help!