What protocol must the graphics controller support to enable HP Display Assistant (HPDA) to control
and set the monitor for best picture quality?

A.
the Display Control Calibration Interface protocol

B.
the Display Data Channel Command Interface protocol

C.
the Monitor Control Calibration Interface protocol

D.
the Monitor Data Channel Command protocol

Explanation:

Reference:
http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareDescription.jsp?lang=en&cc=us&prodTypeId=382087&prodSeriesId=3296839&prodNameId=3296840&swEnvOID=181&swLang=13&mode=2&taskId=135&swItem=ir-73481-1 (5th para)