John: For 40 years, fluoride has been added to public drinking water. █████████ ██ █ ██████ ███████████ ██████ ████████ █████ ████ █████ ██ ██████████ ████ ██████ ████ ███████ ██████ ███████ ██ ███ ███ ████ ████ ██ ███ ████ ██████ ████ █████████ ███ ███ ██████ ████ ████ ███████████ ████ ██████ █ ██ ███████ ████ █ ██████ ████████████ ████ ████████ ███████████ ██████ ████ ████ ████ █ ██ ████ ███ ██ ███████ ████ ███████
John concludes that he should stop drinking fluoridated water to ensure that he doesn’t develop bone cancer because the majority of the male test rats that drank fluoridated water developed bone cancer.
John reasons that because male test rats developed bone cancer from drinking fluoridated water, he should stop drinking fluoridated water, as stopping will ensure that he doesn’t develop bone cancer. However, John fails to consider the possibility that male rats react to fluoridated water differently than humans or that he could still develop bone cancer even if he stops drinking fluoridated water.
Which one of the following ██ ███ █████████ █████████ ██ ██████ ██████████
John does not ████████ ███ ██████ ███████ ███████ ███ ████████ ██ ████████████ ██ ██████
John’s argument isn’t concerned with others besides himself. He only argues that he should stop drinking fluoridated water.
John does not ████████ ███████ ███████████ █████ ██████ █████ █████████
John’s argument isn’t about other diseases. He only argues that he should stop drinking fluoridated water to avoid developing bone cancer.
John does not ████████ ███████ █████ ████ ███ █████ ███████ ██████ ███ ██ █████ ██ █████ ████████ ███ ███ █████ ██ ███ ██████
Whether there were periods during the 40 years in which fluoride wasn’t added to the water is irrelevant. John argues he should stop drinking fluoridated water now.
John does not █████ ██ ███ ████████ ███████ ████ ███████████ █████ ███ ██ ███████
John’s argument isn’t concerned with positive effects of fluoridated water. He argues that he should stop drinking fluoridated water so he doesn’t develop bone cancer.
John does not ████████ ███ ███████████ ██ █████ ██████ ██ ████ ███████
John fails to consider this. John argues that ceasing to drink fluoridated water is the only way he can ensure that he won’t develop bone cancer, but he ignores the possibility that he could develop bone cancer for other reasons even if he stops drinking fluoridated water.
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