The correct option is A.
The use of antibacterial drugs can cause modifications in the genetic material of the concerned bacteria. If the genetic material of the bacteria are modify, that means they have undergone mutation. Because the base sequence of the normal and that of the mutated gene is different, antibiotic will not be able to recognize the bacteria again and thus will not be able to attack it.
Well its apart of the food chain, but is also apart of the circle of life if you call it that. If you need more detail please ask in the comments I can explain more if needed
Answer:
this cell could be in the process of mitosis, specifically metaphase.
