A recent study revealed that people who follow precisely all the standard ... ...

A recent study revealed that people who follow precisely all the standard recommendations for avoidance of infection by pathogenic microorganisms in meat-based foods are more likely to contract diseases caused by these pathogens than are those who deviate considerably from the standard recommendations. Hence, the standard recommendations for avoidance of infection by these pathogens must be counterproductive.

The argument is most vulnerable to criticism on the grounds that it fails to take into account which one of the following possibilities?


(A) Pathogenic microorganisms can reproduce in foods that are not meat-based.
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in PT72 (Jun 2014): Logical Reasoning B