The program code fragment below shows an output file opening by creating an ofstream object. Fill in the blanks. #include (1) // Header for file I/O using namespace std; void main() { char *outName = "outfile. txt"; (2) outFile; // Output file instantiation outFile.(3); // Open an output file in an append mode if (!outFile) { cout << "Fail to open files!" << endl; exit(-1); } … }