The correct answer is: A. Translator
A translator is a program that converts a program written in one language (the source language) into another language (the target language). In the context of programming, a compiler is a translator that converts a program written in a high-level language into a low-level language, such as machine code.
The communications processor is responsible for sending and receiving data between the computer and other devices. The interpreter is a program that executes a program written in a high-level language one statement at a time. Memory is a storage device that stores data and programs.
The user interacts with the compiler through a command-line interface or a graphical user interface. The command-line interface allows the user to type commands to the compiler. The graphical user interface allows the user to interact with the compiler through menus and dialog boxes.