Imagine one of your colleagues is constructing a pie chart to graph the results of data collected on respondents' employment status. What should be your first response upon reviewing the work?

Group of answer choices

To note whether the slices of the pie sum to $100\%$

To suggest that your colleague has used an inappropriate graphic device

To ensure that the frequencies at each time point sum to N

To check whether the bars representing the categories are contiguous as they should be