They are all pure elements. They are all made of cells. They are all living creatures. They are all made of atoms.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: What do water, aluminum, redwood trees, and valley quail all have in common?
Possibilities:
- They are all pure elements.
- They are all made of cells.
- They are all living creatures.
- They are all made of atoms.

They are all made of atoms.