Which term is defined as a note in the source code that explains the code?

Which term is defined as a note in the source code that explains the code?

• A. Comment
• B. Indentation
• C. Whitespace
• D. Bug

Answer: (A)

In programming, a comment is a note written in the source code that explains what the code does or why a certain approach was taken. Comments are meant for people reading the code, not for the computer to execute, so they don’t affect how the program runs. This makes them invaluable for documenting intent, clarifying complex logic, or leaving reminders for future programmers. By contrast, indentation and whitespace are about formatting to improve readability and to show structure, but they don’t convey explanations about the code’s behavior. A bug is an error in the code that causes incorrect behavior, not a note explaining the code.

In programming, a comment is a note written in the source code that explains what the code does or why a certain approach was taken. Comments are meant for people reading the code, not for the computer to execute, so they don’t affect how the program runs. This makes them invaluable for documenting intent, clarifying complex logic, or leaving reminders for future programmers.

By contrast, indentation and whitespace are about formatting to improve readability and to show structure, but they don’t convey explanations about the code’s behavior. A bug is an error in the code that causes incorrect behavior, not a note explaining the code.