The loss of prestressing concrete members after the preloading of concrete (the second batch) is A: [img=146x34]1803b952676ef16.png[/img] B: [img=143x41]1803b9526fa4eb0.png[/img] C: [img=36x29]1803b95277ef881.png[/img] D: [img=93x35]1803b9527fd24f9.png[/img]