The correct answer is:

People pay less attention to non-verbal cues than to what is being said

and

Non-verbal cues are a minor source of feedback

Rationale: Research shows that people pay more attention to non-verbal cues in interpreting what someone means than they do to the words themselves. Non-verbal cues are a key source of feedback. The other statements are true.

Pitfalls: You may have wrongly selected 'Non-verbal cues include tone of voice and silences' if you associated non-verbal communication too narrowly as 'body language': be aware of the full range of non-verbal signals that can be given or received.