ress of answering is
Why is a simple process like "dumpster diving" so effective when gathering information utilizing social
engineering?
A. Sometimes network administrators write notes in manuals or even write down passwords.
B. Company calendars with meeting schedules, employee vacation schedules, and so on can be used to gain
access to offices that won't be occupied for a specified period.
C. Discarded computer manuals can indicate what OS is being used.
D. All of above