Given that file is a reference to a File object that represents a directory， which code fragments will succeed in obtaining a list of the entries in the directory？（）
- AVector filelist = （（Directory） file）.getList（）；
- BString[] filelist = file.directory（）；
- CEnumeration filelist = file.contents（）；
- DString[] filelist = file.list（）；
- EVector filelist = （new Directory（file））.files（）；