R Rohan Raj 🎓 Tutor III ⭐ 6.53K Points 📊 Computer Q. The inner core of an optical fiber is ______ (A) Copper (B) Glass or plastic (C) Liquid (D) Bimetallic 👁️ Show Answer 🔗 Share ⚡Menu ✅ Correct Answer: (B) Glass or plastic You must be Logged in to update hint/solution 💬 Discussion 💬 Comment