Although aspirin has been proven to eliminate moderate fever associated with some illnesses, many doctors no longer routinely recommend its use for this purpose. A moderate fever stimulates the activity of the body's disease-fighting white blood cells and also inhibits the growth of many strains of disease-causing bacteria. If the statements above are true, which of the following conclusions is most strongly supported by them? ["The more white blood cells a patient's body produces, the less severe the patient's illness will be.", 'Aspirin, an effective painkiller, alleviates the pain and discomfort of many illnesses.', 'Aspirin inhibits the growth of white blood cells, which are necessary for fighting some illnesses.', "Aspirin can prolong a patient's illness by eliminating moderate fever helpful in fighting some diseases."]