. What is the purpose of a Python module?AStore variablesBGroup related code into a fileCPerform mathematical operationsDDefine a class

The purpose of a Python module is primarily to group related code into a file. This allows developers to organize their code, making it more manageable and reusable. By creating modules, you can encapsulate functionalities and make it easier to maintain and understand your codebase.

While a module can also contain variables (option A), perform mathematical operations (option C), and define classes (option D), these are simply features of what a module can do, rather than its primary purpose. The main idea behind modules is to bundle related code into a cohesive unit. This modular approach enhances code readability and promotes code reuse.

Final Answer

B. Group related code into a file is the primary purpose of a Python module.