R Ram Sharma 🎓 Coach ⭐ 193.88K Points 📊 C++ Q. A class is made abstract by declaring at least one of its functions as? (A) impure abstract function (B) pure abstract function (C) pure virtual function (D) impure virtual function 👁️ Show Answer 💬 Discuss 🔗 Share ⚡Menu ✅ Correct Answer: (C) pure virtual function