What is the primary role of a debugger?

A debugger is primarily a tool designed to help programmers identify and resolve errors in their code. Debugging is a crucial part of the software development process, allowing developers to examine code execution, find bugs, and understand the flow of a program. When using a debugger, developers can step through their code line by line, inspect variables, and watch the program's behavior in real time. This functionality makes it much easier to locate the source of a problem and understand why the software isn't working as expected.

While the other functions listed, such as writing efficient code or translating code, are important aspects of programming, they do not accurately describe the primary aim of a debugger. Likewise, executing code step by step for performance analysis, although it can be a feature of a debugger, primarily focuses on optimization rather than error resolution. Thus, the defining role of a debugger is indeed to identify and resolve errors in code.