Which of the following is not a passive listening technique?

A) Nodding positively
B) Maintaining eye contact
C) Saying "I'm listening, please go on"
D) None of these choice is correct.

Saying "I'm listening, please go on" is an active listening technique, not a passive one. However, since all options are presented as passive techniques and the correct answer is to identify the one that is not, the statement that none of these choices is correct is itself incorrect because C is indeed not a passive listening technique. This creates a contradiction in the logic of the question as presented. However, interpreting the question as seeking to identify which listed behavior is not typically categorized as passive, the explanation clarifies that C is an active listening behavior, making the initial instruction to choose incorrect options confusing.