What were the major challenges of obama's first term?

The culture between conservatives and liberals, which continued into the twenty-first century, with abortion, affirmative action, gay rights and evolution provoking controversy. The Great Depression shook the economy, and Americans wondered how to deal with problems of health care, retirement, illegal immigration and the environment.

To be honest i thinks its between the first answer and the third answer

The central idea is that the hiv/aids epidemic is serious.