Answer:
Format tab in the Shape Styles group
Step-by-step explanation:
The border can be added around the chart which could be of various types including dashed, dotted or plane line.
The border can be added around the chart by moving the cursor over the shape styles section of the ribbon. This gives instant border around the chart and for customization, you can click the format tab below chart tools tab. Now click the Shape outline button. We can also select the style and size of the border.
Thus, the selected option is the correct answer.