Question

compared to communities without fluoridated water, populations who live in communities with a fluoridated water supply

multiple choice

have lower rates of osteoporosis
have lower body mass indices, on average
have fewer deaths from cardiovascular disease
have fewer dental canes

Explanation:

Fluoridated water is known to help prevent dental caries (tooth decay) by strengthening tooth enamel. Osteoporosis, body mass index, and cardiovascular disease are not directly related to water fluoridation in the way dental caries are. So the correct option is the one about fewer dental caries.

Answer:

D. have fewer dental caries (assuming the last option is D; if the options are labeled differently, adjust the identifier. But based on the content, the correct option is the one stating "have fewer dental caries")