If it is cold, then people wear jackets. If people wear jackets, then they feel warm. Today, people are not wearing jackets. Which of the following conclusions can be drawn?
- A.It is definitely cold
- B.It is definitely not cold
- C.It might not be cold
- D.It is definitely warm
Explanation
From the contrapositive: "if not wearing jackets" doesn't guarantee "not cold" — only that the conditional doesn't force cold. "Might not be cold" is the most cautious valid conclusion. Option C.