The correct answer is: A. simplejaxwsserviceexporter
The simplejaxwsserviceexporter is a tool that can be used to expose a stand-alone SOAP endpoint. It is a Java library that provides a simple way to create and expose a JAX-WS service.
The jax-ws is a Java API for developing web services. It provides a set of classes and interfaces that can be used to create and consume web services. However, it does not provide a way to expose a stand-alone SOAP endpoint.
All of the mentioned is not the correct answer because the simplejaxwsserviceexporter is not the same as the jax-ws. The simplejaxwsserviceexporter is a tool that can be used to expose a stand-alone SOAP endpoint, while the jax-ws is a Java API for developing web services.
None of the mentioned is not the correct answer because the simplejaxwsserviceexporter can be used to expose a stand-alone SOAP endpoint.