For a certain experiment you have 8 subjects, of which 4 are female and 4 are male. The names are Males: Atwater, Bacon, Chu, Diaz Females: Johnson, King, Liu, Moore. There are two treatments, A and B. If a randomized block design is used, with the subjects blocked by their gender, which of the following is NOT a possible group of subjects who receive treatment A?
A) Atwater, Bacon, Johnson, King
B) Atwater, Diaz, Liu, King
C) Atwater, Chu, King, Liu
D) Bacon, Chu, Liu
E) Atwater, Bacon, Chu, Johnson
Answer: Atwater, Bacon, Chu, Johnson
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