In the accompanying figure, item 1 is pointing to the ____.

Which of the following is correct for opening a file and attaching it to a file named File.txt? Assume proper file inclusion and proper using directives.

a) ``` open(outStream, “File.txt”, ios::app) ``` b) ``` ifstream inStream; inStream.open(“File.txt”); ``` c) ``` ifstream inStream(“File.txt”); ``` d) ``` ofstream inStream; onStream.open(“File.txt”, ios::app); ``` e) ``` ifstream inStream(“File.txt”, ios::app); ```

Utilities and device drivers are examples of ____ software.

A. application B. commercial C. system D. productivity