One study factored in fluoride levels in the bone near tumors. If there was a connection between osteosarcomas and fluoride, what would have been the outcome?

If fluoride were connected to osteosarcomas, people with osteosarcomas would be expected to have higher fluoride levels in the bone near their tumors. That matches choice B. Higher levels in people with other cancers, as in choice A, would not specifically support a connection to osteosarcomas.

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