Conclusion:
Therefore, the incidence of whooping cough in adults poses no significant public health threat.Which of the following is an assumption on which the argument depends?
A.
Incorrect: Whooping cough is more difficult to diagnose in adults than in children. No mention of diagnosis and if we consider the negation of this statement conclusion does not break.
B.
Correct:Adults with whooping cough do not readily transmit the disease to children. This is an assumption made here because it is stated that even though more case of the adult whooping case is appearing they are not life-threatening and hence not a public health issue but if this disease gets readily transmitted to children for whom this is life-threatening the conclusion breaks.
C.
Incorrect:Most adults who contract whooping cough get the disease from children with whom they are in close contact. The passage does not state that close contact is required for the transmission of disease, but let's say that this statement is true then also our conclusion remains unharmed.
D.
Incorrect: A disease poses no significant public health threat unless it is life-threatening. This disease is not life-threatening to adults but it is to children, so this statement is wrong in the context of this passage.
E.
Incorrect:Under comparable conditions of exposure, adults contract whooping cough more readily than children. The passage never talks about who can catch disease more readily, negation does not break the conclusion.
Please give Kudos.