Question

What is the meaning of the term "refactoring" in software engineering?

Restructuringandimprovingthedesignofexistingcodewithoutchangingitsfunctionalityandoptimizetheperformanceofsoftwareprograms

A Rewriting the entire codebase of a software system

B Adding new features to an existing software application

C Optimizing the performance of software algorithms

D Restructuring and improving the design of existing code without changing its functionality

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