Click on “Add Subcategory” So it will create sub category of “Default Category”. You can create root category by click on “Add Root Category”.
Configure category data.
“Category Name” field is for category name.
“Include in menu field is for If you want to show category in fronted menu than enable “YES” or if not than disable “YES”.
“Enable Category” field for enable and disable category for magento.
You can see your category at front side home page Menu.
Go to Product – Catalog – Select simple product OR Create new one. Fill up Basic details if you created new one.
After that open “Customizable Options” Toggle” > Click on “Add Option”. Fill up details like “Option Title” and select “Option Type”. After that below “Add Value” Button available click on that for add option values. Fill up Title, Price etc. that you need.
You can show your product front end side with option you selected.