問題文
An analyst is deciding which chart type to use for a tile that must show how monthly revenue has changed over the past three years. Which type conveys this most directly?
選択肢
- A line chart with time on the horizontal axis, which makes the direction and shape of the change visible at a glance.
- A scorecard showing the most recent month's revenue, which summarizes the three-year period in a single figure and implies its direction.
- A heat grid of month against year, which encodes the revenue as color intensity in each cell.
- A scatter plot with revenue on both axes and the months, which reveals the trend by the position of the points.