Assume That an Object of the DirectoryInfo Is Instantiated Using

Multiple Choice

Assume that an object of the DirectoryInfo is instantiated using the identifier dirListing. How could you retrieve the names of all files stored in dirListing that have a file extension of .cs?

A) foreach(FileInfo fil in dirListing.GetFiles("*.cs") )
B) foreach(FileInfo fil in dirListing.GetFiles("cs") )
C) foreach(DirectoryInfo dirListing in File.GetFiles("*.cs") )
D) foreach(DirectoryInfo dirListing in File.GetFiles("cs") )