Why Is a False Positive More Significant in HIV Testing

Multiple Choice

Why is a false positive more significant in HIV testing of patients than in screening donated blood for transfusions?

A) It isn't-both are equally dangerous/significant.False-positives in PEOPLE can lead to psychological trauma,but false-positives in BLOOD could lead to the useful blood being disposed.
B) A false-positive in a PERSON is easily retestable.This makes it more significant,because we would simply quickly retest the person to verify their actual HIV status.
C) A false-positive in BLOOD is easily retestable.This makes it less significant,because we would simply quickly retest the blood to verify its actual HIV status.
D) This statement is backwards-false-positives in blood testing are more significant.If the false-positive rate is high and we don't realize it,we're more likely to dispose useful blood.This could lead to acute shortages of blood for patients who need transfusions.