What is the final stage of the expanding circle?

• A. Self-interest
• B. Friendship
• C. Tribalism
• D. All beings capable of positive or negative experiences

Answer: (D)

The idea is that our moral concern grows as we recognize more beings can experience pleasure or pain. The final stage is to extend ethical consideration to all beings capable of positive or negative experiences—that is, all sentient beings. This means evaluating our actions toward animals and other capable beings not because they belong to a certain group, but because they can suffer or feel happiness. In practice, this broad view challenges us to reduce unnecessary suffering across species and expand compassion beyond humans, rather than stopping at narrower groups like family, tribe, or nation. The other stages remain stepping stones toward this universal scope, but the ultimate target is including every being who can experience positive or negative states.