Arcitura Education Exam S90.05A Topic 3 Question 30 Discussion

You have created an XML schema for a Purchase Order service. The schema, named "po.xsd", is as follows:

Because you believe this schema will need to also be used in several different services, you decide to separate it from the WSDL definition by placing it into its own XML Schema definition. As a result, you now need to import the XML schema into the WSDL document. Which of the following code fragments shows a valid way to import the schema shown above into a WSDL "types" element?