Q: Which of the following is a common feature found in most IDEs?  

A code editor is an essential feature in any Integrated Development Environment (IDE). It is the workspace where developers write, edit, and organize their source code. The code editor in an IDE is usually enhanced with features like syntax highlighting, which highlights different elements of the code to make it easier to read and identify issues. It also supports auto-completion, which suggests code elements as the developer types, speeding up the coding process. Other advanced features include error detection and integration with compilers or interpreters to run the code. Although an IDE may include other tools like version control and debugging tools, the code editor remains the most critical component, as it is the space where actual development happens.