Which is the interactive graphic?

When you are designing graphics, you need to carefully consider what type of graphic best suits your needs: a static graphic, and interactive graphic, or a dynamic graphic.

Four example graphics are described below, identify the interactive graphic.

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Possible Answers

A scatterplot of the average broadband speed against average cost by country, facetted by year.
press1
A scatterplot of the average broadband speed against average cost by country with a dropdown menu to select the year displayed.
press2
An animated scatterplot of the average broadband speed against average cost by country over the years.
press3
A scatterplot of the average broadband speed against average cost by country that is automatically updated when new data become available.
press4