4. You're working in a table that has three columns and five rows. Since the first row will be a header row, you want it to span all three columns. What formatting feature should you use?
A. Connect cells
B. Autofit cells
C. Combine cells
D. Merge cells
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To span the header row across all three columns in the table, you should use the formatting feature called "Merge cells". By merging cells, you can combine multiple adjacent cells into a single cell. This is typically used to create headings or titles that span across multiple columns or rows.
To merge cells in most table editors, follow these steps:
1. Select the cells you want to merge. In this case, you would select the cells in the first row that you want to combine.
2. Look for a toolbar or formatting option that includes a merge cells feature. It may be represented by an icon with two or more cells merged together.
3. Click on the merge cells option. The selected cells will be merged into a single cell that spans across the columns.
4. You can now enter your header text in the merged cell, and it will be displayed across the entire width of the table.
So, in this case, the correct answer is D. Merge cells.