medium · LSAT Logical Reasoning
A researcher states: "The bacteria found on traditional wooden cutting boards penetrate the surface immediately, effectively leaving the surface uncontaminated. Thus, these boards need only be wiped, not washed, to prevent the contamination of food."
Which of the following is an assumption required by the researcher's argument?
- Bacteria that have sunk into the wood will not subsequently work their way back up to the surface where food is cut.
- Wiping a wooden board removes bacteria more reliably than washing it does.
- Every species of bacteria found on food poses a health risk if it is ingested.
- Plastic cutting boards contaminate food more readily than wooden ones do.
- No bacteria of any kind are ever present on the surface of a wooden cutting board.
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More LSAT Logical Reasoning practice
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