Which statement is true concerning the REST integration ability provided by Business Automation Workflow?

Calling the REST service in a service task as part of a service flow is dynamic and does not need service discovery.

Unlike SOAP web services, REST services do not have a "server" configuration entity.

Calling REST services through JavaScript can happen only after a corresponding external service has been defined through service discovery.

When a REST service URL changes, service discovery happens automatically to replace the existing service.