1. The problem asks which set of data is most appropriate to display using a broken-line graph. 2. A broken-line graph (or line graph) is best used to show data that changes continuously over time or ordered intervals. 3. Let's analyze each option: - A: Favourite ice cream flavours of students in your class — This is categorical data, not continuous or ordered, so a bar chart is better. - B: Temperature recorded every 30 minutes all day — This is continuous data over time, perfect for a broken-line graph. - C: Number of sunny days each month of the year — This is discrete data by month, which can be shown with a line graph but often better with bar charts. - D: Number of students in each class in your school — This is categorical data, better shown with a bar chart. 4. Therefore, the best choice is B. Final answer: B