A certificate or diploma is the best way to identify a qualified healthcare professional.
Promising a cure before examination is incredibly impossible, not to mention unprofessional
Avoiding the topic of qualifications is sketchy. It often means that they're insecure about them, or is trying to hide something.
Offering a secret cure is just straight up dodgy. That's the trademark sign of a "snake oil salesman." Meaning, the "secret cure" is either a placebo, incredibly experimental, or incredibly dangerous.
A glucose meter would be the best answer.
A goes with poor air quality
B goes with poor diet
C foes with family history
The answer is A because the cerebrum is divided into two different hemispheres
