Which tools can you use remotely to verify the performance of the HP Scanjet N9120?

A.
Software Tools Diagnostics
B.
N9120 Service Tool
C.
HP Web Jet Admin Software
D.
N9120 Scanner Tools Utility
Explanation:
http://bizsupport1.austin.hp.com/bc/docs/support/SupportManual/c01840759/c01840759.pdf
(page 3)
A or D
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A sure 80%
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