Correct Answer (Detailed Explanation is Below)
A.
Encryption
Detailed Explanation
Encryption is not a basic data-structure operation. Common operations include
insertion,
deletion,
traversal,
searching, and sometimes
sorting. Insertion adds a new element, deletion removes an element, traversal visits elements, and searching locates an element. Encryption belongs to
cryptography and information security, where data is transformed to protect confidentiality. Therefore, among the given options, Encryption is the operation unrelated to basic data-structure manipulation.