The best answer for this question would be:
biological and social
Medical anthropologist need to understand the source of their biological heritage and ofcourse the system of their bodies in order to understand their suffering. Social factor is also important, because it can tells them the source of their suffering.
For maximum assurance preventing influenza or flu, the patient should be vaccinated with inactivated influenza vaccine (IIV) once a year. The vaccine is needed especially for those who are of greater risk to have a flu, including pregnant women, children, and persons with serious medical conditions.
I believe the answer is A
