42.執行下列Python程式片段，其結果為何？[商技112]
(A) 0
(B) 1
(C) 2
(D) 3
a = [[1] * 4 for _ in range(4)]
for i in range(1, 4):
for j in range(1, 4):
if i == 1 and j == 1:
a[i][j] = 2
elif i == 1:
a[i][j] = a[i][j - 1] + i
elif j == 1:
a[i][j] = a[i - 1][j] + j
else:
a[i][j] = a[i - 1][j] + a[i][j - 1]
print(a[2][2]% 4)

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