You Are Teaching a Continuing Education Class to the Staff

You are teaching a continuing education class to the staff regarding the different types of pain. What is the best way to define the sources of somatic pain?

A) Inicisional pain, pain at the sites of tubes and drains, wound complications
B) Chest tubes, abdominal tubes or bladder distention
C) Phantom limb pain, post mastectomy pain or pain from nerve compression
D) Chronic back pain, arthritic or muscle pain