R Ram Sharma 🎓 Coach ⭐ 193.88K Points 📊 Science Q. The untreated paper falls in the following class of insulation (A) B (B) A (C) O (D) E 👁️ Show Answer 🔗 Share ⚡Menu ✅ Correct Answer: (C) O You must be Logged in to update hint/solution 💬 Discussion 💬 Comment