Answer:
Step-by-step explanation:
It's b - composed of multiple cells
All living organisms must undergo some form of development or growth so that they can eventually reproduce. They also must consume or use up energy for this. Furthermore, all beings, even single-celled organisms are composed of complex and carefully structured organelles, molecules, genes etc. So that cancels out options a, c and d.
The only option that doesn't apply to all living things is being composed of multiple cells since there are single-celled organisms. Therefore the answer is B
Hope this helps!