Question
A = [[1, 2, 3],
[4, 5, 6],
[7, 8, 9]]
[A[row][1] for row in (0, 1, 2)]
a.
[7, 8, 9]
b.
[4, 5, 6]
c.
[2, 5, 8]
d.
[1, 4, 7]
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