I'd go with command-line interface.
A CLI enables users to type commands in a console or a terminal window expressed as a sequence of characters and presses the enter key on the keyboard to execute that command. And in this case, Sarah is typing an “open document 3” command to the command-line interface to open a file in her computer.
<span>The step of opening a file creates a connection between a file and a program.Opening an output file usually creates the file on the disk and allows the program to write data to it.Opening an input file allows the program to read data from the file.</span>
Answer:
A) ALU
Explanation:
The arithmetic logic unit (ALU) performs the arithmetic and logical functions that are the work of the computer.
So, the correct option is - A) ALU
Reading and writing have given us both a way to pass on knowledge and learn things we cant learn first hand.<span />