I think its c. assumption but i am not sure if this answer is correct or wrong.
Answer:B. Active community involvement
Explanation: A healthy environment is being able to live in harmony with the earth, protect the peoples around you, and the keeping the earth clean.
Ketamine is used in surgical procedures and makes users float in and out of reality.
Answer: Maintain flexibility
Explanation: If you maintain flexibility throughout your life, then you'll have to stretch often in order to keep fit.
Opiates
Offtopic=(if you want something tasty make lemon poppy seed muffins, like OMG so good)