In order to maintain optimal community health, the best plan for communities would be to . decrease vaccinations and research new treatments and cures b. create laws that control public behavior, like hand washing and blowing your nose c. provide community support to elders who are sick and need healthcare treatment d. provide health services and regulate food and water supplies

In order to maintain optimal community health, the best plan for communities would be to provide health services and regulate food and water supplies. The correct answer is option D. The basic needs of humans should always be supplied, enough for the consumption of the members of the community. In this way, diseases and malnutrition will be prevented. Prevention has always been better than cure.