The definition of biomass is the mass of all living material. Pretty sure it is D.
You need to at least show us what to pair with.
If their answer came out not the same as the accepted theory answer
Vacuoles.<span>A </span>vacuole<span> </span><span>is a </span>membrane<span>-bound </span>organelle<span> which is present in all </span>plant<span> and </span>fungal cells<span> and some </span>protist<span>, </span>animal<span> and </span>bacterial<span> cells. These organelles are far larger in a plant cell than they are in any animal cell.</span>