Which of the Following Statements About Hyperalgesia Is True

Which of the following statements about hyperalgesia is true?

A) Hyperalgesia is defined as decreased pain sensitivity to an applied stimulus.
B) Spread of pain sensitivity that occurs outside the area of damaged tissue due to neurophysiological mechanisms is called secondary hyperalgesia.
C) Pressure pain threshold is a measure of how much pain an individual can tolerate during application of the algometer.
D) Nociception and hyperalgesia are equivalent terms.