What are two features of a WSDL 1.1 document? (Choose two.)
A. Service defines a collection of related endpoints.
B. Service describes the message’s payload using XML.
C. Service assigns an Internet address to a specific binding.
D. Porttype declares complex data types and elements used elsewhere.
E. Porttype elements are used to group a set of abstract operations.
F. Porttype defines a concrete protocol and data format specification.