Final answer:
Clustered-column charts are one of the most versatile options for comparing various types of data across multiple series, making them suitable for complex data comparisons. Pie charts are better for showing division of a whole but are less effective with many categories, while bar graphs are good for straightforward comparisons and line graphs for showing trends over time.
Step-by-step explanation:
When making a choice between pie charts, bar graphs, and line graphs, it's essential to consider the nature of the data and the specific information you wish to communicate. Pie charts are excellent for displaying how a whole is divided into proportional parts and can be very effective for illustrating percentages or relative sizes. However, they can become confusing when there are too many slices or categories.
Bar graphs, on the other hand, provide a simple and straightforward way to compare different groups or categories of data, especially when the focus is on comparing the sizes of these groups. Even when there are a large number of categories, bar graphs remain easy to interpret. When it comes to showing changes over time or trends, line graphs are typically the best choice, as they clearly depict how values rise and fall over a period.
For complex comparisons and versatility, clustered-column charts offer a way to compare multiple categories of data across several series, making them one of the most versatile chart types. Therefore, the correct answer to the question is c. clustered-column charts, as they allow for a diverse range of data comparisons.