I would also go with A. B and C kill all the movement on the trunk, and D places the deadwood in the back, pulling the eye back, instead of up the trunk.
I also agree that cascade doesn't seem to suit the tree much, because of that upward turn that you can really see in G. Maybe you could make G work if you could get some buds on top, but I would go with A.
Though I really like the deadwood on the left of the trunk on A. Maybe a little shorter, but I wouldn't get rid of it all together. It fills in that negative space under the bend of the trunk in a very serene, liquid kind of way.
How about this? Turn A about 45 degrees clockwise, the branches in red are turned into jin, with maybe only the two on the left reduced. Bring the canopy down to about the blue line, and your foliage would end up in / around the orange triangle. You could either cut, and hope for budding. A better idea would be to bend the branch going over the blue line, down and forward in a "c" shape. So that they top of that branch ends up towards the right-most corner of the orange triangle. That way, the tree keeps the foliage, and doesn't loose too much energy from such a big prune / cut.
It ends up giving the tree a serpent / dragon look, with the head at the foliage and the tail at the bottom left.
Just my two cents though.