Which 2010 health reform law aimed to increase insurance coverage and reduce costs, and is commonly known as Obamacare?

• A. Medicare
• B. HIPAA
• C. Affordable Care Act (ACA)
• D. Medicaid

Answer: (C)

This item tests recognizing the 2010 health reform that broadened health insurance coverage and aimed to curb costs. The best answer is the Affordable Care Act, commonly known as the ACA or Obamacare. It established health insurance exchanges, expanded Medicaid, and provided subsidies to make coverage affordable, while also adding protections such as prohibiting denial of coverage for preexisting conditions. These elements directly address increasing access to insurance and reducing costs over time through coverage expansion, preventive care, and payment reforms. By contrast, Medicare is the federal program for many seniors, Medicaid assists low-income individuals, and HIPAA is a 1990s privacy and portability law, not the broad reform enacted in 2010.