Final answer:
Refactoring code to create a reusable helper method is a part of code modularization, aiming to increase code readability and maintainability, which may also improve code optimization. So, the correct option is c) Code modularization.
Step-by-step explanation:
Understanding Code Refactoring
Rearranging lines of code to create a reusable helper method is commonly referred to as code refactoring.
This technique falls under the broader category of code modularization, where the goal is to make the code more organized, readable, and maintainable. An additional benefit is that it can lead to code optimization by eliminating duplicate code and improving performance.
In practice, this involves identifying pieces of code that perform a specific task and can be isolated from the main codebase. You would then extract this code into a separate function or method.
This newly created helper method can then be reused throughout the codebase whenever that specific task needs to be performed.
As a result, any changes to this task only need to be made in one place, reducing the chance of errors and simplifying maintenance.
The process does not typically involve altering the underlying algorithm design, but rather focuses on how the existing code is structured.
So, the correct option is c) Code modularization.