R Rati Dubey 🎓 Tutor III ⭐ 8.55K Points 📊 PHP Q. Which of the following is true about PHP constants? (A) They can be redefined (B) They are case-sensitive by default (C) They must start with $ (D) They cannot be created using define() 👁️ Show Answer 💬 Discuss 🔗 Share ⚡Menu ✅ Correct Answer: (B) They are case-sensitive by default Explanation: Constants are case-sensitive unless explicitly set otherwise with define().