The bubonic plague was a highly fatal infectious disease caused by a strain of bacteria. The original inhabitants of Atlantis, the Atlanteans, lived in an area in which the bubonic plague occurred. Yet, surprisingly, records show that the deaths during that time were all caused by natural causes. There were no recorded instances of people dying from bacterial infections. A possible explanation lies in the fact that the food reserves that stored fresh meat and vegetables during the Atlantean era, were found to be richly populated with the Penicillium fungi. Penicillium fungi secrete penicillium, which is used as an effective antibiotic against bacterial infections. Thus, the high levels of penicillium in their food probably explains the low incidence of bubonic plague among the Atlanteans.
Which of the following is an assumption on which the argument relies?
A There were no instances of the bubonic plague at other regions other than Atlantis.
B Penicillium is not rendered ineffective as an antibiotic by exposure to the process involved in cooking food.
C Infectious diseases other than the bubonic plague to which the ancient Atlanteans were exposed are unaffected by penicillium.
D Meat and Vegetables were the only items in the diet of the ancients Atlanteans that have contained penicillin.
E Bubonic plague cannot be transmitted by ingesting meat or vegetables contaminated by the infectious bacteria.
Source: Crackverbal