已知字典person={'phone':'12345678', 'age':20,'name':'John'}则list(person.items())的结果是什么?
A. {'phone':'12345678', 'age':20,'name':'John'}
B. [('phone','12345678'),( 'age',20),('name','John')]
C. [('phone':'12345678'),( 'age':20),('name':'John')]
D. ['phone':'12345678', 'age':20,'name':'John']