You Are Examining a 17 Year Old Boy at an Emergency

You are examining a 17 year old boy at an emergency scene. The boy has a heart rate of 80 beats per minute, a respiratory rate of 20 breaths per minute and a systolic blood pressure of 120 mm Hg. You determine that his vital signs

A) indicate a need for emergency medical treatment.
B) are slightly below the normal average for his age.
C) are slightly above the normal average for his age.
D) are normal for his age group.