The graph shows changes in life expectancy in the United States over a fifty-year period. What challenge arose as a result of the trend shown above?
A. educating millions of school-age children
B. providing medical care for an aging population
C. keeping people from leaving the country to retire overseas
D. offering easy-to-follow voting registration procedures

I believe the answer would be "B"

Explanation: if you're able to provide better medical care for the aging population then they can live longer therefore the more aging people treated the higher the life expectancy is

I think it is --- providing medical care for an aging population

Explanation:

The question is asking about challenges that came from life expectancy rising, with a longer life expectancy there's going to be an aging population. the other options are don't really fit as we're talking about old ppl not children, old ppl will have already been registered to vote

well the fact it is basically a peninsula allowed trade to come from many places, thus allowing cultural diffusion to take place. india has seasonal monsoons that merchants travel back and forth from india using the monsoons wind patterns