下面代码运行后,a、b、c、d四个变量的值,描述错误的是?
import copy
a = [1, 2, 3, 4, ['a', 'b']]
b = a
c = copy.copy(a)
d = copy.deepcopy(a)
a.append(5)
a[4].append('c')
a == [1,2, 3, 4, ['a', 'b', 'c'], 5]
b == [1,2, 3, 4, ['a', 'b', 'c'], 5]
c == [1,2, 3, 4, ['a', 'b', 'c']]
d == [1,2, 3, 4, ['a', 'b', ‘c’]]
d == [1,2, 3, 4, ['a', 'b', ‘c’]]