Answer:
Obstacle
Explanation:
Barrier, obstacle, major obstacle, impediment relate to anything that tries to interfere with operation or development or stops it. An barrier is one that lies in the path of concrete or figurative development, tangible or non-material, the absence of imagination is a barrier to one's development.
B. Less developed areas have higher population growth because of higher birth rates and high death rates.
The answer is Medicare and Medicaid.
Because of the medicare and medicaid, most people believe that there's no longer a need for traditional charity for sick people for need help, because they think all already taken care of by the government. This later on become the motivation for hospitals and drugs companies to increase the price of their products/service