单选题：Which statement is true?

Which statement is true?
@[C](2)

A. [3] in [1,2,3]
B. 3 in [123]
C. '3' in list('123')
D. 3 in list('123')



A.[3] in [1,2,3]
B.3 in [123]
C.'3' in list('123')
D.3 in list('123')


答案：C