The Nursing Student Is Learning About the Appropriate Method to Use

The nursing student is learning about the appropriate method to use when assessing a client's blood pressure.The student nurse asks the nursing instructor why it is necessary to palpate the systolic pressure prior to the procedure.Which of the following is the nursing instructor's best response?

A) "You can document this value if you cannot hear the blood pressure well."
B) "This needs to be done only when the client is developing clinical manifestations associated with shock."
C) "You are more likely to get an accurate reading when you do it this way."
D) "It is the best way to determine an arterial obstruction."