C Chandrakant 🎓 Tutor III ⭐ 6.73K Points 📊 Reasoning Q. Complete the series: 1, 3, 7, 13, 21, 31, 43, ? (A) 59 (B) 55 (C) 61 (D) 57 👁️ Show Answer 🔗 Share ⚡Menu ✅ Correct Answer: (D) 57 You must be Logged in to update hint/solution 💬 Discussion 💬 Comment