Which of the following is an example of active reconnaissance?

• A. Searching public records
• B. Telephone calls as a help desk or fake customer care person
• C. Looking for the target‚Äö√Ñ√∂‚àö√ë‚àö¬•s details in the database
• D. Searching the target‚Äö√Ñ√∂‚àö√ë‚àö¬•s details in paper files