Answer:
c.
Explanation:
They work by killing the bacteria or slowing down its growth, they achieve this by attacking places like the wall or coating the surrounding bacteria.
There are some organelles which are found in plant cells but which are not found in the animal cells, these structures will provide a positive identification of a plant cell under a microscope.
The structures which would provide a positive identification of a plant cell under a microscope are CENTRAL VACUOLE, CHLOROPLAST [PLASTIDS] AND CELL WALL. These structures are only present in plant cells.
Cell wall because their has to be something protecting it.