Your application is using jdb authentication and you are using the Jdbe helper class we talked about in class to programmatically create an authenticated user using the following line of code $($userManager is an instance of it$)$:userManager. createUser $($user$)$ ;What must user be an instance of$?1....$security.core.userdetails.User$2.$ A User class that we must create in the security package$\mathrm{.}3.$ A User class that we must create as an inner class of our Security Config class$\mathrm{.}4....$security.ajax.asynchronous.User