You Work for a Blood Donation Clinic and Screen Potential

You work for a blood donation clinic and screen potential donors for risks of infectious diseases. Your donor questionnaire asks, "In the past 12 months, have you had sex with a person who has hepatitis?" You are screening a 19-year old female. What should you keep in mind when analyzing her answer to this question?

A) Many young people don't consider oral-genital stimulation as having sex, so she may not report it even though she could have gotten infected that way.
B) Many young people tend not to report sexual activity during which they used a condom since they assume there could have been no infection anyway.
C) Females are generally ashamed of their sexual activity and tend to underreport it, so she might choose not to disclose a potentially risky contact.
D) Both B and C