Final answer:
The Caucasian American woman who is 61 years old, underweight, and smokes is at the highest risk for osteoporosis.
Step-by-step explanation:
The person who is at highest risk for osteoporosis is a Caucasian American woman who is 61 years old, underweight, and smokes. Osteoporosis is more common in women, especially after menopause, and smoking and being underweight are additional risk factors. Additionally, the person's age increases the risk as bone mass tends to decrease with age.
Learn more about osteoporosis