Correct : B
Oracle APEX provides several preconfigured authentication schemes that follow a standard behavior for authentication and session management. You can select a preconfigured authentication scheme from the gallery when you create an authentication scheme for your application. The preconfigured authentication schemes are:
Open Door Credentials: This scheme enables anyone to access your application using a built-in login page that captures a user name.
LDAP Directory: This scheme authenticates a user and password with an authentication request to a LDAP server.
HTTP Header Variable: This scheme authenticates users externally by storing the username in a HTTP Header variable set by the web server.
Social Sign-In: This scheme supports authentication with Google, Facebook, and other social networks that support OpenID Connector OAuth2 standards.
Oracle APEX Accounts: This scheme authenticates users against Oracle APEX user accounts that are created within and managed in the APEX user repository.
Custom Authentication: This scheme allows you to create a custom authentication scheme from scratch to have complete control over your authentication interface.
Database Accounts: This scheme authenticates users using database schema accounts.
Oracle Application Server Single Sign-On Server: This scheme delegates authentication to the Oracle AS Single Sign-On (SSO) Server.
SAML Sign-In: This scheme delegates authentication to the Security Assertion Markup Language (SAML) Sign In authentication scheme.
Options Selected by Other Users: