Rationale: A. This response is not the most appropriate because it is confrontational and may undermine the new nurse in front of the client. While rotating sites unnecessarily may cause discomfort, simply stating it would cause harm does not promote learning or critical thinking. It also fails to assess the new nurse’s current understanding of evidence-based practice. B. This is the best response because it uses a supportive, educational approach consistent with professional nursing practice. By asking the new nurse what they understand about the evidence, the experienced nurse encourages critical thinking, assesses knowledge gaps, and creates an opportunity for teaching about current research. This aligns with principles of evidence-based practice and promotes a collaborative learning environment without embarrassing the new nurse. C. This option is inappropriate because the issue is not about the technical skill of inserting an IV line, but rather about applying current evidence to practice. Teaching a skill does not address the misunderstanding regarding outdated practice. D. While this statement is true, it is too vague and does not actively engage the new nurse in understanding or applying the evidence. It also misses the opportunity to assess the nurse’s knowledge and guide them toward correct clinical reasoning.