This is questioning. They don’t know if they are sure of there decision
Bad eating habits, less self-confidence
The amount of that a food contains is measured in calories.
Calories in food are actually measured in kilocalories, so 1000 actual calories for every 1 Calorie listed
My best guess would be C. Assessing a patient's level of compliance with past medical advice. You want to know if they have followed medical advice prior because if they haven't, you would just be wasting your breath.