Depends on the circumstances. In a health field however, a persons work environment could be the reason for illness/injury. Most people spend a great deal of time at work. I believe you should ask work related questions, but do not HAVE to.
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.
Answer: You should call a doctor, or if it is bleeding then that means your brushing to hard. But if it bleed during the day then apply a wet handkerchief or a gauze pad and tell an adult. Better safe then sorry!
Explanation:
The DNA requires an adequate supply of nutrients, growth factor stimulation, and space which is provided after the death of the previous cells. When there is enough cytoplasm for two cells, the cells divide after the supply of energy from the nutrients.
