A 22-Year-Old Patient Hospitalized with Severe Pain in the Knees

A 22-year-old patient hospitalized with severe pain in the knees and a fever and shaking chills is suspected of having septic arthritis. Information obtained during the nursing history that indicates a risk factor for septic arthritis is that the patient

A) has a parent who has reactive arthritis.
B) recently returned from a trip to South America.
C) is sexually active and has multiple partners.
D) had several sports-related knee injuries as a teenager.