The ____________ fstream member function opens a file stream and connects the stream variable to a physical file whose name is the argument to the function.

a) close( )
b) overloaded operator <<( )
c) open( )
d) eof( )
e) flush( )

c) open( )

Part c) opens a file stream and connects it to a physical file. The argument is a C-string constant or variable. Part a) close() is used without argument to close the file to prevent file corruption, a possibility if the program terminates abnormally. Part b) has nothing to do with opening a file. Part d) returns a type bool value of true if the file pointer has attempted to read at end of file. Part e) flush( ) is used without argument to write the file buffer out to the physical medium.