Refer to the message in the exhibit.
Replace the ??? in the message with the appropriate namespace.
A.
http://www.w3.org/2003/05/soap-envelope
B.
http://schemas.xmlsoap.org/soap/envelope/
C.
http://schemas.xmlsoap.org/soap12/envelope/
D.
http://schemas.xmlsoap.org/soap11/envelope/