Please help me with this question

Aging populations can be a problem for developed countries because a) there are fewer younger workers coming into the workforce. b) most older workers demand top-level pay and full benefits. c) many older people are skilled in manufacturing, not technology. d) younger workers cannot find jobs when older people work longer.

Article iv section 2 of the constitution define the relationship between the state and federal government by stating that

Which of these was a sign that life was improving in the north compared to the south ?