Since Marco needs to contact his coworker Malia who works down the hall from him. Malia is part of Neutral type of audience for this communication.
A person is known to be a Neutral Audience if he or she are people who are said to be directly or indirectly to be interested or will not be interested in listening or investing in your idea.
Note that they can be said to be people who are on the fence and they are neither here nor there, in regards to the concept a person is trying to introduce or trying to sell to them.
Since the object of the conversation is yet to be know, one can say that Malia is in a state where she is neutral to what Marco has to say.
Therefore, Since Marco needs to contact his coworker Malia who works down the hall from him. Malia is part of Neutral type of audience for this communication
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