Luz immigrated to the United States from Columbia when she was sixteen. She last visited a physician three years ago. The physician told her that her blood pressure was high and prescribed medication. Since then, Luz has avoided doctors because she works full-time for a small housekeeping service that does not offer health insurance. Which of the following statements about Luz is true?

a. Luz' ethnicity is a much more powerful determinant of her high blood pressure than is her socioeconomic status.
b. Luz is at risk for a health crisis that would likely require treatment far more costly to society than the cost of primary care visits and medication.
c. Luz could afford to purchase her own health insurance if she really wanted it.
d. Luz almost certainly has access to free health care at a community health clinic in her area.