Answer:
the teenager may drop out of school.
the teenager may become emotionally unstable. example she may be confused, afraid and frustrated.
lack of pre- natal care.
she may have financial problems and as a result may not eat well( malnourished) and become anaemic
she may have health problems
The counter argument is the first one
I personally think it means when someone doubts you, you show them the truth.
C. It helps us to frame the way we see events of the past.
I believe the answer is D