A Cornerstone of the Medical, or "Disease," Model Is That

A cornerstone of the medical, or "disease," model is that disease states are a reflection of

A) biological dysfunction at the cellular or molecular level.
B) a corruption of "free will."
C) a disruption in the balance of the four humors of the body.
D) the unavoidable consequence of commerce, which has brought us things such as the bubonic plague in the 1300s, when flea-infested rats were carried from areas where the plague was endemic to areas where it had never been seen before.