What is the composition of the cell walls? Is a cell membrane also present? Can any substances pass through the cell walls? Do the cell walls help the cell to survive?
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: A researcher is viewing a cell that has cell walls. To best narrow down the taxonomic group from which the cell belongs, which question should a researcher ask?
Possibilities:
- What is the composition of the cell walls?
- Is a cell membrane also present?
- Can any substances pass through the cell walls?
- Do the cell walls help the cell to survive?

What is the composition of the cell walls?