【单选题】

I am discovering that many people want, above all else, to live life fully.But sometimes the past prohibits our living and enjoying life to the utmost in the present.

A、schoolteacher (16) his room a few minutes early and (17) a mealworm laboriously crawling along the floor. It had somehow been (18) . The back part of the worm was dead and dried up, but still attached to the (19) living part by just a thin threaD、
As the teacher (20) the strange sight of a poor worm (21) its dead half across the floor, a little girl ran in and noticed it there. Picking it up, she said, "Oh, Oscar, when are you going to (22) that dead part so you can really live "
What a marvelous (23) for all of us! When are we going to lose that dead part so we can really live When are we going to let go of past pain so we can live (24) When are we going to drop the baggage of needless guilt so we can (25) life When are we going to let go of that past resentment so we can know peace
Have you been dragging something that is dead and gone around with youAre you ready to lose that dead part so you can really live
A．happily
B．sadly
C．joyfully
D．fully