I would also choose a line graph to show Flores del Mundo’s membership trends over the course of a year since it would most clearly convey the change over time. A line graph could be used to graph total membership versus employee/spouse/dependent over time but a bar graph may be more visually appealing and easier to quickly understand. The year could be divided into quarters to make it more condensed although this may hide some of the month to month changes. Since Eastern vs Northern would only be comparing two values, a line graph would probably work best since it’s easier to track two colors versus four but a bar graph could be appropriate here too.