help me in bio

I would think the best answer is B as it fits the description the closest as compared to the rest of the options.
A.Centrioles are tubular in shape and not membrane bound.
C. The Rough Endoplasmic Reticulum is an interconnected membrane bound interceullar space with a distinct surface populated by ribosomes.
D. The Smooth Endoplasmic Reticulum is also an interconnected membrane bound intercellular space but is distinctly tubular in shape.
B. The Golgi Apparatus consists of several curved membrane bound sacs arranged parallel to each other. The reference to decreasing size could be referring to how the sacs on the trans face tend to seem smaller as vesicles pinch off.

what is the answer here