Which characteristic ensures blockchain data cannot be retroactively altered? By Ahmed Akber ✅ Fact Checked 📊 Difficulty Medium 📅 Last Updated 13 Aug 2026 A. Scalability B. Centralization C. Immutability D. Volatility Check Answer 💡 Explanation: Immutability allows blockchain ledgers to remain permanent and unalterable once data is verified and recorded. 📚 Topics: Emerging Technologies Technology and Computing 🎯 Exams: CSS GEN NTS PMS
