You develop a web API named WebApi1.
When validating a token received from a client application, WebApi1 receives a MsalUiRequiredException exception from the Microsoft Identity Platform.
You need to ensure that the client application has the information required to complete the authentication.
Which header should you include in the HTTP response sent from WebApi1 to the client application?
A. Accept
B. Authorization
C. WWW-Authenticate
D. Access-Control-Allow-Credentials
