S Sikhar Chaudhary 🎓 Tutor III ⭐ 5.88K Points 📊 Pandas Q. Which method returns a boolean DataFrame indicating where values are null? (A) isnull() (B) notnull() (C) isna() (D) Both A and C 👁️ Show Answer 💬 Discuss 🔗 Share ⚡Menu ✅ Correct Answer: (D) Both A and C Explanation: Both isnull() and isna() return a boolean DataFrame indicating missing (NaN) values.