If this question is asking what I think it's asking, the answer is Puberty or Pubescence.
The answer is the system is based on habits and planners
I would say this can be answered with a couple of the choices but ur teacher would probably want Answer D the most. If you have a future in technology and engineering which are high paying fields , learning how to use technology well can be detrimental to having a successful future career.
Hey There!
Americans decreased their family size in the 20th century because, the government offered an incentive if the family size stayed small. So the answer would be C.
Thank You!