S Sikhar Chaudhary 🎓 Tutor III ⭐ 5.88K Points 📊 Pandas Q. Which method stacks the prescribed level(s) from columns to index? (A) stack() (B) unstack() (C) melt() (D) pivot() 👁️ Show Answer 💬 Discuss 🔗 Share ⚡Menu ✅ Correct Answer: (A) stack() Explanation: stack() pivots the columns of a DataFrame into the index, compressing it into a Series with a MultiIndex.