When Discussing the Nursing Process, the Instructor Stresses That for Clients

When discussing the nursing process, the instructor stresses that for clients undergoing cardiac surgery, it is important for the nurse to demonstrate competence. What is the rationale for this statement by the nursing instructor?

A) To acknowledge the client's emotion
B) To encourage verbal conversation
C) To relieve the client's insecurity and anxiety
D) To encourage the client to communicate