My analysis
A. This still does not actually explain why the ones with prizes ranked ON AVERAGE significantly lower.
B. This actually explains why they may have scored lower on average. Even though we don’t know what grounds they were judged on, this helps explain the paradox.
C. This definitely does not help to explain the paradox why the group with prizes scored significantly lower
D. This still does not help to explain the paradox why the group with prizes scored significantly lower
E. Even if they were not explained what the standards were, WHY did the group with prizes score significantly lower ON AVERAGE? Does not resolve the paradox!!