Which of the Following Statements Best Describes Recurrent Acute Pain

Which of the following statements best describes recurrent acute pain?

A) The pain is constant and varies in severity, typically persists for 6 months or longer, and is relatively unresponsive to treatment.
B) The pain typically goes on for 6 months or less and disappears when the tissue damage is repaired.
C) It involves constant pain that increases in severity over time, due to a malignant condition, and typically lasts longer than 6 months.
D) It involves intermittent episodes of pain that are acute in character but chronic inasmuch as the condition repeats for more than 6 months.