[单选题]This has been my life. I have found it worth living, and would gladly live it again if the chance were offered me. A My life is so precious that I would not miss any chance to enhance it. B I think my life was meaningful, and if it was possible, I would readily repeat it. C My life is so worthwhile that I would not exchange it for anything no matter what. D I really enjoy my life today, and I could make it even better if I had a further chance.