M Mr. Dubey 🎓 Coach ⭐ 102.92K Points 📊 Ruby Q. What is the method used to check if a variable is defined in Ruby? (A) .is_defined? (B) .defined? (C) .exist? (D) .has_value? 👁️ Show Answer 💬 Discuss 🔗 Share ⚡Menu ✅ Correct Answer: (B) .defined?