following code segment. [ServiceContract] public interface ICustomerService { ... } public class CustomerService : ICustomerService { ... } The service is self-hosted in a console application. Older client applications access the service at http://contoso.com:8080/CustomerService/V1. Newer client applications access the service at http://contoso.com:8080/CustomerService/V2. You need to ensure that any client application can access the service at either address. Which code segment should you use?（）

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