You are creating a Windows Communication Foundation (WCF) service that implements operations in a RESTful manner.
You need to add a delete operation. You implement the delete method as follows:

void DeleteItems(string id);

You need to configure WCF to call this method when the client calls the service with the HTTP DELETE operation. What should you do?

A.
Add the WebInvoke(UriTemplate=”/Items/{id}”, Method=”DELETE”) attribute to the operation

B.
Add the HttpDelete atribute to the operation

C.
Replace the string parameter with a RemovedActivityAction parameter

D.
Replace the return type with RemovedActivityAction.

Explanation:
Advanced Web Programming
(http://msdn.microsoft.com/en-us/library/bb472541(v=vs.90).aspx)

Example:

[ServiceContract]
public interface ICustomerCollection
{
[OperationContract]
[WebInvoke(Method = “POST”, UriTemplate = “”)]
Customer AddCustomer(Customer customer);

[OperationContract]
[WebInvoke(Method = “DELETE”, UriTemplate = “{id}”)]
void DeleteCustomer(string id);

[OperationContract]
[WebGet(UriTemplate = “{id}”)]
Customer GetCustomer(string id);

[OperationContract]
[WebGet(UriTemplate = “”)]
List<Customer> GetCustomers();

[OperationContract]
[WebInvoke(Method = “PUT”, UriTemplate = “{id}”)]
Customer UpdateCustomer(string id, Customer newCustomer);
}