Answer D. is not true.....
increased metabolic rate and heart rate
To prevent a health risk from poor sanitation.
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<span>This statement is False. Because avoiding vaccination will raise the risk of getting flu. Vaccination helps your immune system to develop adaptive immunity to infections. to cut down the risk of any infection it's better to vaccinate. So given statement is False. It will be true if instead of the word avoiding,there will be getting. </span>