The District of Columbia's public school buildings are in poor condition. Buildings are old and falling apart, roofs are leaking, air, heat, and sewer systems need repair. The problem is so bad, schools did not open on time. National standardized test scores of DC students are some of the lowest in the country, and many of the District’s schools are in non-compliance with No Child Left Behind. Yet because of the building problems, curriculum development and improvement is now last on the priority list for DC public schools. Whose problem is it?

It's the district's problem. Their district is most likely so involved in politics and political moves, they forget that their kids need to be educated. The school districts main job is to make sure education is being provided effectively, and efficiently. If the school district isn't doing that, they are failing terribly.

Explanation:

the answer for 3 is b and the answer for 4 is d

health care plans in the united states having high costs because they are focusing on providing quality programs for different groups of individuals. the quality of the service is based on money flow received from the members. without this investment, couldn't be possible a constant scientific searching to prevent death and illness caused because of low levels of health investigation. currently, the complaints are not about the highest cost, but about the coverage and benefits to access the necessary health services required by the members.  

besides, if a global health system is established the quality levels will fall down because of the standardized of the health. the access to care will increase but the quality will be low because it depends on the money invested.