B is the answer! Hope this helps :)
Answer:
I think that Viruses are not alive so Being composed of molecules that are found in cells (nucleic acids, proteins, lipids and complex sugars) and having the capacity to evolve, viruses are often said to be alive. But they aren't alive because they arent a living thing.
Answer:
Ribosomes
Explanation:
Rough endoplasmic reticulum, choloroplast and nucleus all are important organelles and are membrane bound except for ribosome
