The symptoms that US president Zachary Taylor began showing five days before his death are consistent with arsenic poisoning. Recent examinations 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 does of the poison.
Which of the following is most strongly supported by the statements given?
Question type- Inference
So remember to stick to information given in the argument . Answer should be supported by the argument .
(A) The symptoms that Taylor began showing five days before his death are consistent with poisoning other than arsenic poisoning
Argument no where discusses about poisoning other than arsenic. So we will find no support for this statement from the argument. Hence this cannot be our inference.So Eliminate A
(B) Taylor's death was not the result of arsenic poisoning
-This can be tempting ans choice. But remember we need support from the argument for this statement to be our ans.
Argument clearly says in first line itself that " The symptoms five days before his death are consistent with arsenic poisoning" Its clear that argument is not supporting that "Taylor's death was not result of arsenic" when it clearly says that symptoms were consistent with arsenic poisoning , it cannot contradict the premise info. So Eliminate B
(C) The symptoms that Taylor began showing five days before his death were not caused by a lethal dose of arsenic
Yes- This can be inferred. Read the last statement of the argument. Last statement says "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." It supports our ans choice. IF levels of arsenic in bones were lower than what it would have been if lethal dose of arsenic was taken when person lives more than a day clearly helps us infer that death was not caused by lethal dose of arsenic.
So CORRECT(D) The symptoms that Taylor began showing five days before his death grew more severe each day
-No where it is discussed that symptoms were severe. Only first line in the argument talks about symptoms . So out of scope - Eliminate
(E) It is unusual for a person who has ingested a lethal dose of arsenic to live for more than a day
- Again last statement talks about possibility of living more than a day where level of arsenic found in bones is of certain level. Directly contradicts given information .Hence Eliminate.
Hence ANS CHOICE C- IS CORRECT
Hope this helps