The person who is still alive is **Subject B**.
**Why?** In a clinical or mortuary setting, bodies are laid flat. The fact that the knees are pulled up under the sheet indicates muscle tension and conscious movement. Additionally, Subject B is the only one without a toe tag, which is a standard procedure for identifying deceased individuals in a morgue.
### The Psychology of Riddles
Why are these “Pay attention to details” puzzles so popular?
1. **The “Aha!” Moment:** Our brains reward us with a hit of dopamine when we solve a puzzle that initially seemed difficult.
2. **Visual Processing:** These riddles exercise the part of our brain responsible for pattern recognition and “visual search,” which is different from how we read text.
3. **Social Engagement:** They are the perfect “comment bait.” People love to share their answers, debate the clues, and challenge their friends to see who is the fastest observer.
