Final answer:
According to the PPACA, an adult can be covered by a parent's health care plan until they turn 26 years old.
The correct multiple-choice option is (d).
Step-by-step explanation:
The Patient Protection and Affordable Care Act (PPACA), also known as Obamacare, allows an adult to be covered by their parent's health care plan until they turn 26 years old. This provision was implemented to ensure that young adults have access to affordable health insurance options while they are transitioning into adulthood and establishing their own careers. By allowing young adults to stay on their parents' policy, it helps to bridge the gap in coverage and provides financial security. The correct multiple-choice option is (d).