R Ram Sharma 🎓 Coach ⭐ 193.88K Points 📊 HTML Q. With regards to e-mail addresses: (A) hey must always contain an @ symbol (B) hey can never contain spaces (C) they are case-insensitive (D) all of the above 👁️ Show Answer 💬 Discuss 🔗 Share ⚡Menu ✅ Correct Answer: (D) all of the above