If you are developing a Web Service starting from WSDL 1.1, how would you declare in wsdl that
the Web Service requires the use of Addressing in a standard and interoperable way.
A.
Declare a policy as 
<wsp:Policy> 
<wsam:Addressing wsp:Optional=”true”> 
<wsp:Policy/> 
</wsam:Addressing> 
</wsp:Policy> 
and attach it the corresponding wsdl:portType so that it applies to all the wsdl:operations in its 
scope.
B.
Declare a policy as 
<wsp:Policy> 
<wsam:Addressing wsp:Optional=”true”> 
<wsp:Policy/> 
</wsam:Addressing> 
</wsp:Policy> 
and attach it the corresponding wsdl:binding so that it applies to all the wsdl:operations in its 
scope.
C.
Declare a policy as 
<wsp:Policy> 
<wsam:Addressing> 
<wsp:Policy/> 
</wsam:Addressing> 
</wsp:Policy> 
and attach it the corresponding wsdl:binding so that it applies to all the wsdl:operations in its 
scope.
D.
Declare a policy as 
<wsp:Policy> 
<wsam:Addressing> 
<wsp:Policy/> 
</wsam:Addressing> 
</wsp:Policy> 
and attach it the corresponding wsdl:service so that it applies to all the wsdl:ports in the service 
scope.
Explanation: