D Deepak Sahoo 🎓 Tutor II ⭐ 10.83K Points 📊 JAVA Q. Which of the following is a valid Java identifier? (A) 123abc (B) _abc123 (C) abc-123 (D) 123-abc 👁️ Show Answer 💬 Discuss 🔗 Share ⚡Menu ✅ Correct Answer: (B) _abc123 Explanation: Java identifiers can start with a letter, underscore or dollar sign.