Testing, testing

Our school makes us complete online educational modules to reduce their liability in the event that we get hurt on the job. We have to watch mind-numbing videos and then answer vapid quiz questions. Our latest module, on bloodborne pathogens, made me answer this gem:

Which of the following practices will prevent the transmission of HIV, hepatitis B virus, and hepatitis C virus?

A. unprotected sexual contact with multiple partners
B. individuals positive for hepatitis B, hepatitis C, or HIV donating blood
C. not sharing personal care items with blood on them, like razors or toothbrushes
D. sharing needles or syringes

My prior post on the mindless busywork we have to endure as medical students.