The symptoms that United States President Zachary Taylor began showing five days before his death are consistent with arsenic poisoning. Recent examination of Taylor' s bones, however, revealed levels of arsenic comparable to those found in the bones of Taylor' s contemporaries. These levels are much lower than the levels of arsenic that remain in the bones of arsenic poisoning victims who live for more than a day after ingesting a lethal dose of the poison. Which of the following is most strongly supported by the statements given?
A: Taylor's death was not the result of any kind of poisoning.
B: The symptoms that Taylor began showing five days before his death are consistent with poisoning other than arsenic poisoning.
C: It is unusual for a person who has ingested a lethal dose of arsenic to survive for more than a day.
D: The symptoms that Taylor began showing five days before his death were not caused by a lethal dose of arsenic.
Choose A, B, C or D as your solution.
D