C Chandani 🎓 Tutor II ⭐ 10.97K Points Q. In 1999, Where did the world population reached? (A) 1 billion (B) 3 billion (C) 6 billion (D) 9 billion 👁️ Show Answer 💬 Discuss 🔗 Share ✅ Correct Answer: (C) 6 billion