How do I wait until Task is finished in C#?

Question

I want to send a request to a server and process the returned value:

private static string Send(int id)
{
    Task responseTask =          


        

Answer 1

A clean example that answers the Title

string output = "Error";
Task task = Task.Factory.StartNew(() =>
{
    System.Threading.Thread.Sleep(2000);
    output = "Complete";
});

task.Wait();
Console.WriteLine(output);