Which statements are TRUE about WSDL?

It uses XML to define the service layer document which consists of origin of the web service, headers, port types, request, and response data.

It stands for "Web Service Description Language" and is a document written in XML.

It stands for "Web Service Description Language" and is a document written in Object Notation.

It is a wrapper for a SOAP message.

It uses XML or JSON to define the service layer document which consists of origin of the web service, headers, port types, request, and response data.