Final answer:
To apply a filter to show only Design Tasks in column D, select the column range, click on the Filter button, and choose the Design option from the dropdown list.
Step-by-step explanation:
To apply a filter to the Task Name (column D) to show only Design Tasks, follow these steps:
- Select the cell range or column header that contains the Task Name data (column D).
- Go to the 'Data' tab in the Excel ribbon and click on the 'Filter' button.
- A drop-down arrow will appear next to the column header. Click on it and select the 'Design' option from the dropdown list.