Answer:
C
Explanation:
Although there are many characteristics that may demonstrate that this woman is in a "high-risk" category, the main characteristics are family history, BMI, and her drug/alcohol abuse.
Her family history indicates that there are many possible genetic disorders that she could have inherited, and may even pass down to her children.
In most circumstances, a person is usually underweight if their BMI is under 18. Body Mass Index is calculated to be a ratio of a persons weight and height, and a healthy person should have a BMI between 18 and 24.
Alcohol and drug abuse are characteristics that should definitely be taken into account when treating a person, and this person being upfront about it means that the doctors are able to treat her much more effectively. Once again substance abuse can cause many health problems.