Which two actions should you perform?

You develop a Windows Store application that has a web service backend.
You plan to use the Azure Active Directory Authentication Library to authenticate users to Azure Active
Directory (Azure AD) and access directory data on behalf of the user.
You need to ensure that users can log in to the application by using their Azure AD credentials.
Which two actions should you perform? Each correct answer presents part of the solution.

A.
Create a native client application in Azure AD.

B.
Configure directory integration.

C.
Create a web application in Azure AD.

D.
Enable workspace join.

E.
Configure an Access Control namespace.

Explanation:
A:
Windows Store application
“Add an application my organization is developing”
“In the Add Application Wizard, enter a Name for your application and click the Native Client Application type”
B: An application that wants to outsource authentication to Azure AD must be registered in Azure AD, which
registers and uniquely identifies the app in the directory.

https://azure.microsoft.com/en-us/documentation/articles/mobile-services-windows-store-dotnet-adal-ssoauthentication/