問題文
A client wants to compare the sales trend of 24 product subcategories side by side, keeping each trend readable. Which chart approach fits that requirement?
選択肢
- A single line chart, which repeats the same small trend chart once for every color in a legend.
- Small multiples, which repeat the same small trend chart once for every subcategory in a grid.
- A dual axis chart, which repeats the same small trend chart once for every measure in a pane.
- A packed bubble chart, which repeats the same small trend chart once for every dimension in a circle.