A startup company is transitioning from a public cloud to a private cloud environment. As a first step, they will transition to a hybrid cloud model.
What is the best option for a short-term single sign-on (SSO) solution that can also be leveraged once the private cloud is fully realized?
A. Public Key Infrastructure using public and private key pairs
B. SAML only
C. OAuth and SAML
D. Federated Single Sign-On