R Roshan 🎓 Extraordinary ⭐ 2.52K Points 📊 PHP Q. What will be the output? Code: $a = [1,2]; $b = [3,4]; $c = $a + $b; print_r($c); (A) [1,2,3,4] (B) [1,2] (C) [3,4] (D) Error 👁️ Show Answer 💬 Discuss 🔗 Share ⚡Menu ✅ Correct Answer: (B) [1,2] Explanation: Array union keeps keys from first array.