Question ID:PT86 S4 Q19 Passage:European wood ants incorporate large quantities of solidified conifer resin into their nests. Conifer resin is a natural disinfectant that has been shown to kill strains of bacteria that can cause disease in wood ants. Thus, the wood ants' use of conifer resin probably came about as a disease-protection measure.  Stem:Which one of the following would be most useful to know in order to evaluate the strength of the argument? Correct Answer Choice:DChoice A:whether conifer resin retains its disinfectant properties over very long periods of time Choice B:whether the nests of European wood ants generally contain more conifer resin at some times of the year than at others Choice C:whether any ant species other than European wood ants use conifer resin in their nests Choice D:whether the use of conifer resin affords structural benefits to European wood ants' nests Choice E:whether the disinfectant properties of conifer resin evolved as a disease-protection measure for conifer trees