What is a common practice to ensure readability in code?

• A. Ignore whitespace to save space
• B. Use descriptive variable and function names, add comments, and format consistently
• C. Write all code in a single line
• D. Never comment your code

Answer: (B)

Readable code comes from naming things clearly, documenting intent, and keeping a consistent style. Descriptive variable and function names tell you what data or behavior is about without tracing every line. Comments explain why something is done, especially for complex logic or non-obvious decisions. Consistent formatting—spacing, indentation, and grouping related code—helps readers quickly parse structure and relationships, making maintenance easier for you and others.

Ignoring whitespace makes code harder to read and understand; cramming everything onto a single line destroys structure; never commenting removes important context. Together, these practices keep code approachable, easier to review, debug, and extend.