D. An undisclosed disease that he had harbored for years. DR. Lanyon had died as a result of falling ill
Without the further context of the article you're on, I would say the answer is most likely C.
Dying is far more opposed than negative ideations.
Hope this helped.
King Arthur is the king while Don Quixote OR Sundiata is NOT a king. What they both share in common is that they are both a legend and both go down in History (like Rudolph).
