Ok. The answer is... B!
And Sal's interpretation is exactly right!
Salsero wrote: I say they are big, ropey-leaved Wuyi yan cha ... all except B that is.
Prize goes to Sal, Siverneedles and Cinnamon Kitty
(hey let me know where to send it!)
It makes sense to think A is different, because it's the lowest quality level among all!
And obviously C catches some eyes. It's the least oxidized among all, as said Chip. But the question is "in terms of origin or varietal
A, C, D are all Wu Yi Shui Xian. B looks a bit weird. It's a traditional TGY (origin unknown but believed to be Fu Jian). It's basically what all Fu Jian TGY looked like 20 years ago, and now mainly used by older Hong Kong and older Cantonese people.