Trends in twenty-first century health care in the united states are described as revolutionary by longenecker and longenecker (2014). leaders will innovate and change toward preventive and wellness health care services because of which of these trends?

a. new laws and regulations from the affordable care act (aca) to cut costs and improve indicators of quality and staffing challenges.
b. aging population, increased numbers of veterans with posttraumatic stress disorder (ptsd) and traumatic brain injury, pay-for-performance, focus on safety and quality, and medical homes
c. advances in genomics, integrative medicine, and increased emphasis on evidence-based interventions
d. advances in technology with hie networks, personal health records, ehrs, and telehealth
e. strain on emergency services, "never events," accountable care organizations, pay-for-performance, the human genome project, and nurse shortages followed by a flood of new nurses have all affected and led to changes in the health care system over the last decade.