What is the most controversial provision of the Patient Protection and Affordable Care Act—which is sometimes referred to by its
detractors as Obamacare? A. mandatory health insurance coverage
B. improving the quality of health care
C. subsidies for low-income individuals
D. creation of health insurance exchanges
"<span>A. mandatory health insurance coverage" is the most controversial aspect of this law, since this means that people who choose not to buy health insurance are subject to a fine. </span>
The American attitude shifted in favor of rights for Native Americans. This is based on "Polls showed that Americans believed in rights for Native Americans". Why it's not A is because it wasn't the polling that contributed to the act, but what the polls showed which is C.