答案是F。
Matrix 11 and 12 have 1 overlap, 12 and 13 have 1 overlap.
Matrix 21 and 22 have 4 overlaps, 22 and 23 have 4 overlaps.
Matrix 31 and 32 have 4 overlaps, 32 and F have 4 overlaps.
Matrix 11 and 21 have 4 overlaps, 21 and 31 have 4 overlaps.
Matrix 12 and 22 have 1 overlap, 22 and 32 have 1 overlaps.
Matrix 13 and 23 have 1 overlap, 23 and F have 1 overlap.
Matrix 11 and 12 have 1 overlap, 12 and 13 have 1 overlap.
Matrix 21 and 22 have 4 overlaps, 22 and 23 have 4 overlaps.
Matrix 31 and 32 have 4 overlaps, 32 and F have 4 overlaps.
Matrix 11 and 21 have 4 overlaps, 21 and 31 have 4 overlaps.
Matrix 12 and 22 have 1 overlap, 22 and 32 have 1 overlaps.
Matrix 13 and 23 have 1 overlap, 23 and F have 1 overlap.
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