The Nurse Needs to Obtain a Blood Sample from a 7-Year-Old

The nurse needs to obtain a blood sample from a 7-year-old child. How should the nurse explain this procedure to the patient?

A) "The doctor needs some of your blood; trust me, it won't hurt."
B) "I need to draw some blood from you. Will you hold still for me?"
C) "The technician will draw your blood; it will just hurt for a minute."
D) "The doctor needs to look at your blood to see why you are sick; it will hurt for a second."