C cause smoking effects lots of your respiratory system so when u eliminate it, it can help build up your respiratory system and won't make u as susceptible to respiratory diseases.
For Number 1, your answer would be B. Have him go at his own speed and not for the win.
For Number 2, It would be D. The girl would get an Anxiety Attack.
Number 3, is not fully filled out in question form.
The answer would be *May hear bath as bat or three as tree*
OB. Treatment during childhood is particularly effective and typically cures issues.