One way to address whether or not a study subject can identify if s/he is taking active drug or placebo is to ask them to guess what they have received. Which of the following is true regarding this question?
A. If a majority surmise incorrectly, the study author should not report this
B. If the majority surmise incorrectly, you may assume that no one knew which product they were receiving
C. If a majority surmise correctly, all of the data from the study are useless
D. If a majority surmise correctly, that must be reported in the study findings