If you can use any letters, it would have to be 2 lower case letters such as tt
Lysosomes, because they are the organelles that secrete these hydrolytic enzymes and help break down old organelles, viral/bacterial invaders, and food particles.
If there isn’t multiple choice I think it is the ones in the center ring (the closest ring to the center) of the atoms
To ensure there safety and comfort of subjects and to make sure the subjects are taken advantage of.
