Which of the Following Individuals Is at Risk for Developing

Which of the following individuals is at risk for developing osteoporosis? (select all that apply)

A) A 55-year-old man who is on a low dose of oral prednisone every day because of rheumatoid arthritis
B) A 40-year-old woman who works as a secretary
C) A 60-year-old woman who walks three miles a day
D) A 50-year-old man who works as a mason