Final answer:
In Microsoft Excel, the correct navigational path to add a chart to a worksheet is Insert > Chart.
Step-by-step explanation:
The correct navigational path to add a chart to a worksheet in Microsoft Excel is option a: Insert > Chart. This option allows you to easily insert a chart into your worksheet. After selecting this option, you can choose the type of chart you want to insert, such as a bar chart, line chart, or pie chart.