Final answer:
The weaknesses of a pie chart display include having no traceable source or time period, too many slices, distorted proportions due to exploding 3D slices, distracting images, no units of measurement, and difficulty in reading 3D slices.
Step-by-step explanation:
When evaluating the weaknesses of a pie chart display, it's important to consider the clarity and accuracy of the information it presents. The weaknesses in the list that apply to pie charts include:
A colorful, cute subtitle (point 6) may not add substantial information, but it does not inherently constitute a weakness unless it detracts from the professionalism or clarity of the presentation. Too much information (point 8) is not a weakness that is specific to pie charts and depends on the context of the presentation. Therefore, options 1, 2, 3, 4, 5, 7, and 9 are valid weaknesses of the display described.