Http Get Data With ExpandoObject c#

static void Main(string[] args)
{
    Task.Run(async () =>
    {
      HttpClient httpClient = new HttpClient();
      HttpResponseMessage responseMessage = await httpClient.GetAsync("https://jsonplaceholder.typicode.com/comments");
      string jsonData = await responseMessage.Content.ReadAsStringAsync();
      dynamic data = JsonSerializer.Deserialize<List<ExpandoObject>>(jsonData);
      foreach (var item in data)
      {
          StringBuilder sb = new StringBuilder();
          sb.Append("Post Number=" + item.postId + " Id=" + item.id + " Body=" + item.body);
          Console.WriteLine(sb);
          Console.WriteLine(" - - - - - - - - - - - - - - - - - - - - - - - - -");
      }
    }).GetAwaiter().GetResult();
}