Which authentication type should you recommend?

You are designing a plan to deploy a new application to Azure. The solution must provide a single sign-on experience for users.
You need to recommend an authentication type.
Which authentication type should you recommend?

A.
SAML credential tokens

B.
Azure managed access keys

C.
Windows Authentication

D.
MS-CHAP

Explanation:
A Microsoft cloud service administrator who wants to provide their Azure Active Directory (AD) users with sign-on validation can use a SAML 2.0 compliant SP-lie
profile based on Identity Provider as their preferred STS/identity provider. This is useful where the solution implementer already has a user directory and password
store on-premises that can be accessed using SAML 2.0. This existing user directory can be used for sign-on to Office 365 and other Azure AD-secured resources.