Which feature is required for graphs according to the rules?

• A. A legend
• B. A grid
• C. A scale
• D. A title

Answer: (D)

A graph needs a title to establish what it is about. The title provides immediate context, telling the reader what data is being shown and what the graph is illustrating. Without it, the purpose can be unclear and the data harder to interpret. For example, a title like “Average daily temperature in City X (June 2024)” immediately communicates what the graph represents. Other features, such as a legend, grid, or scale, are helpful for readability and interpretation—legends are essential only when there are multiple data series, grids aid reading values, and scales are needed to interpret axis numbers. But the rule emphasized here is that a clear title is the core element that makes the graph understandable at a glance.