I’m facing a strange problem. Below are 3 code variants:

Variant 1 (working)

private static HttpResponseMessage executeAsync()
{
    var reguest = getRequest(jsonRequest, HttpMethod.Post);
    var response = client.Send(reguest);
    return response;
}

Variant 3 (working)

private static async Task<HttpResponseMessage> executeAsync()
{
    var reguest = getRequest(jsonRequest, HttpMethod.Post);
    var response = client.SendAsync(reguest).Result;
    return response;
}

Variant 3 (doesn’t work!)

private static async Task<HttpResponseMessage> executeAsync()
{
    var reguest = getRequest(jsonRequest, HttpMethod.Post);
    var response = await client.SendAsync(reguest);
    return response; // The execution doesn't reach this line
}

I rarely use asynchronous operations, and therefore I can’t figure out what’s wrong here.
Can somebody explain to me?