A nurse is caring for a client who has hepatitis A. The client asks the nurse how he might have contracted the virus. Before responding, which of the following questions should the nurse first ask the client?

A. "Do you take any recreational drugs?": Recreational drug use is not a major transmission route for Hepatitis A (unless hygiene is poor in communal drug use). B. "Have you eaten any shellfish lately?": Shellfish from contaminated waters can carry Hepatitis A - important, but not the first question. C. "Have you traveled to a third world country in the past two months?": Hepatitis A is transmitted via fecal-oral route, and travel to areas with poor sanitation is the most common risk, so this is the priority question. D. "Did you have a blood transfusion recently?": Hepatitis A is not bloodborne (that applies to Hep B and C), so this question is not relevant.