What role do comments play in game code?

Comments in game code serve the important purpose of documenting and explaining the functionality of the code. They allow developers to write notes that clarify complex logic, provide context for why certain decisions were made, and make it easier for others (or even the original authors after some time) to understand the intent behind the code. Good documentation through comments can significantly aid in maintaining and debugging the code, as they provide insights without the need to decipher the actual code logic.

While it's true that comments are ignored by the compiler, which allows them to be used freely without affecting the program's execution or performance, their primary function is to enhance understanding and communication about the code. Comments do not inherently improve performance or reduce code size; in fact, they may slightly increase the file size due to the addition of text. Therefore, the core benefit lies in their role as an explanatory tool, making option B the correct choice for this question.