Which source should you not consult to validate an advertisement's claim?

At age 16, juana has an appropriate weight and eats whatever she wants whats the best stratwgy juana can use to ensure good health? a) walk once a day and start paying attention to her diet to prevent weight gain b)engage in regular. physical activity and get in the habit of eating food that is high in nutrients c) take up an aerobic sport like soccor and reduce her calorie intake to 1800 per day

What is a common risk associated with illegal drugs?

Which of these gives the best indication that a health service is based on pseudoscience?