Which of the Following Is an Accurate Statement About the Science

Which of the following is an accurate statement about the science of pain control?

A) There is no objective measure of pain.
B) The AST blood test provides a way to measure the average level of pain the individual has experienced in the past week, but cannot be more accurate than this.
C) Similar levels of acute trauma will cause the exact same level of pain for different individuals.
D) Chronic pain is more easily assessed than is acute pain.