haardiksharma wrote:
For years, doctors have been trying to find a cause for Chronic Fatigue Syndrome (CFS). The devastating illness tends to strike healthy and fairly active individuals with no other history of medical problems or conditions. Recently, doctors in California have found that over 70% of those individuals diagnosed with CFS are infected with a rare enterovirus that is almost never found in the healthy population. As a result, they believe that this enterovirus is the primary cause of many cases of CFS.
Which if the following is an assumption upon which the doctors’ theory depends?
A) There are not other viruses that may cause Chronic Fatigue Syndrome.
B) The rare enterovirus was present at the onset of these patients’ Chronic Fatigue Syndrome.
C) The laboratory technicians analyzing the presence of the enterovirus in the patients’ blood and tissues did not make some mistakes in their analysis.
D) The severity of the symptoms among the patients diagnosed with CFS does not vary widely.
E) The rare enterovirus is commonly seen in patients that are severely ill.
CFS cause unknown. CFS strikes healthy and active individuals.
RECENTLY, Docs have found over 70% of these individuals to be infected with a rare enterovirus, never found in healthy people.
Doc's Conclusion - Enterovirus is primary cause of CFS
A - The argument does specifically state that enterovirus is the primary cause, so this is tempting, but it's not really an assumption.
B - For enterovirus to cause CFS, it should have been in the patient's body before -> Looks promising. KEEP
C - This will be a serious lapse in testing procedures, but it cannot be an assumption. OUT.
D - Symptoms aren't under question. OUT.
E - We are just talking about patients down with CFS. OUT.
Between A and B, B wins and is the correct answer.
For the doctors to assume that enterovirus to cause CFS, they would have to assume that enterovirus is there in a patient's body prior to them developing symptoms of CFS.
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