Gwd 1-23

Past assessments of
the Brazilian rain forest have used satellite images to tally deforested areas,
where farmers and ranchers have clear-cut and burned all the trees, but such
work has not addressed either logging, which is the removal of only selected
trees, as well as surface fires, burning down individual trees but do not
denude the forest.

A.       which is the removal of only selected trees,
as well as surface fires, burning

B.      
which removes only selected trees, or surface fires that burn

C.       which removes only selected trees, along
with surface fires that burn

D.       removing only selected trees, or surface
fires, burning

E.       removing only selected trees, as well as
surface fires that burn  

我想问的是，D为什么不对？