What happens during Metaphase? A. Chromosomes separate from one another.
B. Chromosomes line up single file down the middle of the cell.
C. Chromosomes become visible.
D. All of the above​

During metaphase, the cell's chromosomes align themselves in the middle of the cell through a type of cellular "tug of war." The chromosomes, which have been replicated and remain joined at a central point called the centromere, are called sister chromatids.

i think its control and coordinate because im pretty sure thats what tissue does and the joints are what control movement and then your skeletal/ bones provides portection. hope that .

correct answer is a. and d.