A. Etymology
B. Graphology
C. Cryptography
D. None of these
🧠 Explanation:
Cryptography is the art of writing codes and secret languages to secure communication. It protects data from unauthorized access, vital in cybersecurity. This field is a key topic in computer science, engaging students and IT professionals. Understanding cryptography ensures safe online transactions, relevant for banking, privacy, and digital security. Its role in modern technology attracts those exploring encryption, hacking prevention, and data protection, highlighting its importance in safeguarding information in the digital age, from emails to blockchain systems.
