Which of the following tasks should you perform to create a basic authentication for an inbound web service? NOTE: There are 2 correct answers to this question.

Which of the following tasks should you perform to create a basic authentication for an inbound web service? NOTE: There are 2 correct answers to this question.
A . Add an external web service integration to the add-on solution.
B . Assign the web service operations to a new or existing work center view in the web servie creation wizard.
C . Download the WSDL file and add the authentication details.
D . Assign business users to the work center view the that the Web service is assign to.

Answer: B,C