Which practice improves code readability?

• A. Using obscure abbreviations throughout the code
• B. Avoiding comments
• C. Using descriptive names, comments, and consistent formatting
• D. Writing all logic in a single line

Answer: (C)

Readable code comes from using descriptive names, comments, and consistent formatting. Descriptive names communicate intent so you don’t have to read every line to understand what a variable or function does. Comments provide context, rationale, or explanations for non-obvious choices, helping future readers grasp why something was done a certain way. Consistent formatting, including spacing, indentation, and line breaks, makes the structure easy to follow and reduces the mental effort needed to skim the code.

Obscure abbreviations slow comprehension, since readers must guess what the names mean. Avoiding comments leaves readers without guidance about intent, trade-offs, or special cases. Piling everything into a single line wrecks readability by hiding structure and making it hard to parse.

Using descriptive names, comments, and consistent formatting communicates intent clearly and makes code easier to read, maintain, and collaborate on, which is why this approach best improves readability.