已知字符串 str="Happy new year",则执行命令 print(list(str)) 的输出结果是? ( )
['H', 'a', 'p', 'p', 'y','n' 'e', 'w', 'y','e, 'a','r]
[H,a,p,p,y,n,e,w,y,e,a,r]
['H','a','p','p','y','n','e','w','y','e','a','r']