What is meant by the term 'bug' in software?

The term 'bug' in software refers to an error, flaw, or unintended behavior in a program. This can manifest in various ways, such as the program crashing, producing incorrect results, or behaving in an unexpected manner when certain inputs are provided. Bugs are often the result of mistakes made during the coding process or miscommunications regarding the software's intended functionality.

Identifying and fixing bugs is an essential part of the software development life cycle, as they can significantly impact user experience and the overall reliability of the software. This understanding helps developers create more robust applications and aids in providing a smoother experience for users. In contrast to the other choices, which reference aspects like enhancements or features, a bug specifically denotes a problem within the code that needs to be addressed for the software to perform correctly.