How should you complete the code?

DRAG DROP
You have the following code.

You need to complete the method to return the content as a string.
How should you complete the code? To answer, drag the appropriate code elements to the correct targets in the answer area. Each code element may be used once, more than once or not at all. You may need to drag the split bar between panes or scroll to view content.
Select and Place:

Correct Answer:

Explanation/Reference:
References: https://docs.microsoft.com/en-us/dotnet/csharp/async