I believe it is option D Sympathetic Nervous System.
Generally depending on the antibiotic they target the phospholipids on the plasma membrane of the bacteria in your system that is making you sick I say bacteria viruses generally mutate so frequently that their phospholipids cannot be targeted which is why when you have the flu all that can cure you is time, you can only hide the symptoms.
Answer: Organelle
Explanation: A nucleus is an organelle that functions as the cell's brain, regulating its production of proteins and genetic material. The nucleus governs the cell's production of these substances by means of its deoxyribonucleic acid or DNA. ... It contains information that determines the cell's purpose and function.
C. Gravity
I think its correct! Sorry if its not!
