The informatics nurse is working on a chart to demonstrate the increasing incidence of obesity in the patient population at a health clinic. The data will represent patients who are of normal weight, overweight, obese, and morbidly obese, and it will include the percentage of the total population for each group. This type of data is most effectively represented by a:
a. bar chart.
b. column chart.
c. line chart.
d. pie chart.
