PT 47 S2 Q21

Until recently, biologists were unable to explain the fact that pathogens—disease-causing ... ...

With which one of the following statements about the prevailing view of host-parasite relations would the biologists mentioned in line 13 be most likely to agree?
(A) The view contradicts most evidence of actual host-parasite relations.
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Practice Set: Science & Technology Mix 1