Sentence Correction

The yield per acre of coffee berries varies enormously in that a single tree, depending on both its size and on climate and altitude, could produce enough berries to make between one and twelve pounds of dried beans a year.
A. enormously in that a single tree, depending on both its size and on climate and altitude, could produce
B. enormously in that a single tree, dependent on its size and also on climate and altitude, is able to produce
C. enormously, because a single tree, depending on its size and on climate and altitude, is able to produce
D. enormously, because a single tree, being dependent on its size, climate, and altitude, is capable of producing
E. enormously, because a single tree, dependent both on its size as well as on climate and altitude, could produce

is it C?

I too feel its C

IMO: B.

A - Usage of could refers to past and ',+ing' as previous clause is not a immediate effect of subordinate clause.
b -
C - ,+ing modifier
D - being dependent is wrong
E - Both X as well as Y is wrong idiom.

IMO C.

A, B - we need because to show casual relationship, in that is wrong

D - being dependent is wrong. Moreover splits each factors separately where climate and altitude should come together as in the original sentence.

E - dependent is wrong, both X as well as Y is wrong

OA is C

because is correct , in that is incorrect;
C- correct;
D -being, its climate and altitude?
E - both and as well as