medium · GMAT Verbal
Resistant bacterial strains found on livestock farms are often genetically identical to strains that later sicken humans in nearby towns. A researcher argues this proves farm antibiotic use, not hospital prescribing, is the main source of human resistant infections.
Which of the following is most strongly supported by the information above?
- Hospital prescribing contributes essentially nothing to human resistant infections.
- Some resistant strains that infect humans are genetically identical to strains found on farms.
- Reducing antibiotic use on the farms would soon end all resistant infections in nearby towns.
- The resistant strains first originated on the farms and later spread to the humans in the towns.
- Towns located far away from any livestock farms have essentially no resistant bacterial infections.
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