A 401 HTTP response code is returned when calling a REST API. What is the error state identified by this response code?

A 401 HTTP response code is returned when calling a REST API. What is the error state identified by this response code?

A. The server cannot process the request as it has detected an issue in the request syntax or body. B. The request has not been accepted because it requires authentication. C. The sever accepted the request but the client is not authorized for this content. D. The server cannot find the requested resource because the path specified is incorrect.