Inappropriate computer activities could be described as:

A.
Data scavenging through the resources available to normal system users.

B.
Theft of information or trade secrets for profit or unauthorized disclosure.

C.
Computer behavior that might be grounds for a job action or dismissal.

D.
Loss incurred unintentionally though the lack of operator training.

Explanation:
The correct answer is “Computer behavior that might be grounds for a job action or dismissal”.
While all of the activities described are
considered in the broad category of inappropriate activities, this
description is used to define a narrower category of inappropriate
activities.
Answer “Loss incurred unintentionally though the lack of operator training.” is defined as
accidental loss.
Answer “Theft of information or trade secrets for profit or unauthorized disclosure.” is considered
intentionally illegal computer activity.
Answer “Data scavenging through the resources available to normal system users.”is a keyboard
attack, a type of data scavenging attack using common tools or utilities
available to the user.