Which type of application should you add?

You manage an Azure Active Directory (AD) tenant
You plan to allow users to log in to a third-party application by using their Azure AD credentials.
To access the application, users will be prompted for their existing third-party user names and passwords.
You need to add the application to Azure AD.
Which type of application should you add?

A.
Existing Single Sign-On with identity provisioning

B.
Password Single Sign-On with identity provisioning

C.
Existing Single Sign-On without identity provisioning

D.
Password Single Sign-On without identity provisioning

Explanation:
Configuring password-based single sign-on enables the users in your organization to be automatically signed in
to a third-party SaaS application by Azure AD using the user account information from the third-party SaaS
application. When you enable this feature, Azure AD collects and securely stores the user account information
and the related password.

https://azure.microsoft.com/en-gb/documentation/articles/active-directory-appssoaccess-whatis/