The correct answer is C. The voice is objective because it describes the setting without further commentary
Step-by-step explanation:
Objectivity implies only describing facts or reality, without adding personal perspectives or opinions. This is the opposite of subjectivity that involves describing one´s perceptions, thoughts, feelings, and opinions.
In this context, the voice from the excerpt is objective because the narrator only describes the setting (administrative office) and does not include personal perspectives or provides any comments, this can be seen in "This is a cold room in University Administration, wood-walled" or "I am seated in an office, surrounded by heads and bodies" that only describe reality.