Which One of the Following Statements Made by an EMT

Which one of the following statements made by an EMT student indicates that he correctly understands the use of capillary refill when assessing a patient?

A) "Capillary refill is a very reliable sign of shock in any patient between the ages of 18 and 65 years."
B) "Capillary refill is a more reliable sign of blood circulation in children under 6 years of age than in adolescents or adults."
C) "The possibility of chronic circulatory diseases makes the capillary refill test an excellent sign of circulation in the adult patient."
D) "If a delayed capillary refill is observed in any aged patient, there is a high probability he or she is in shock."