What do you think is the most important social problem facing your country? Why do you think they are the more important than other social problems? What effects do you think it is having on your country? (I LIVE IN AMERICA BTW)

When asked to consider the major problems facing the country, the affordability of ... A comparable majority says drug addiction is a major problem: 64% say it is a ... Wide partisan differences in views of most major problems. A ... adults are more likely than young people to regard them as very big problems.

Explanation:

even though you have attached neither the chart nor the generalizations, i have located them online. the right answer is d, since they are asking you about a generalization. you can only infer from the chart that between 2008 and 2009 the number of employed workers decreased significantly (from over 115 millions to 107 millions approximately), which signals some type of economic crisis.  

answer; elasticity of the lungs decreases;