What is the purpose of using comments in Karel programs?

Using comments in Karel programs serves the essential purpose of explaining the code and improving its readability. Comments are non-executable lines that help human readers understand the logic, purpose, and functionality of different sections of the program. They can clarify what specific commands do, outline the overall structure, and provide context for future reference or for other programmers who might read the code later. By incorporating comments, a programmer enhances the maintainability and understandability of the code, making it easier to debug or modify in the future.

The other options do not accurately reflect the role of comments in programming. Comments do not execute commands, provide energy to Karel, or increase processing speed. Instead, they contribute to better communication regarding the code within the programming community, fostering collaboration and ease of learning.