A Admin 🎓 Coach ⭐ 38.03K Points 📊 PHP Q. Which PDO method rolls back a transaction? (A) rollback() (B) undo() (C) cancel() (D) reverse() 👁️ Show Answer 💬 Discuss 🔗 Share ⚡Menu ✅ Correct Answer: (A) rollback() Explanation: rollback() reverts transaction changes.