Final answer:
The nurse cannot make a definitive assumption based solely on the young man's lack of eye contact during the interview. More data is needed to draw a conclusion.
Step-by-step explanation:
The young man's lack of eye contact during the interview could have multiple interpretations and assumptions. It should be noted that interpreting body language requires caution and additional information to draw accurate conclusions.
Option a: Assuming that the young man is not to be trusted in what he says because he is evasive is not necessarily appropriate. Lack of eye contact can be due to various reasons and may not indicate deception.
Option b: It is possible that the young man is feeling sad and cannot look the nurse in the eye. However, making this assumption solely based on lack of eye contact would not be conclusive without further information or evidence of sadness.
Option c: Another possibility is that the young man is shy, which can make it difficult for him to make eye contact. In this case, the nurse may need to move slowly and create a comfortable environment to facilitate communication.
Option d: Given the limited information provided, it is reasonable to conclude that more data is needed to draw a definitive conclusion about the reasons for the young man's lack of eye contact. Gathering additional information and assessing other aspects of his behavior and communication would provide a more accurate understanding of the situation.