Answer: the patients' underlying emotion.
Explanation:
Therapeutic communication techniques are the techniques or methods used in communicate and gain the patients' trust. It is a face-to-face or say, physical process of interactions. Therapeutic communication techniques are used mostly by Nurses(although other profession is health sector do use it as well, but, nurses do have more interactions with their patients that others).
Theerapeutic communication techniques includes (but not limited to) the following;
===> The professionals trying to put the patients' emotions into words.
====> Encouraging comparision.
===> Acknowledgement.
===> Making observations.
Therefore, from the question we can deduce that the students will identify the PATIENTS' UNDERLYING EMOTIONS as verbal communication.