The correct answer is D. vertical gridline.
The datasheet formatting dialogue box allows you to customize the appearance of your datasheet. You can change the font, font size, alignment, and other properties of the text in your datasheet. You can also change the border and line styles of your datasheet.
The border and line styles dropdown list box contains a list of different border and line styles that you can use to customize the appearance of your datasheet. The options in this list box include:
- None: No border or line will be applied.
- Solid: A solid line will be applied.
- Dashed: A dashed line will be applied.
- Dotted: A dotted line will be applied.
- Double: A double line will be applied.
- Hairline: A very thin line will be applied.
- 3-D: A three-dimensional line will be applied.
The vertical gridline is not an option in the border and line styles dropdown list box. This is because the vertical gridline is a property of the datasheet itself, and not of the text in the datasheet. The vertical gridline is used to separate the columns in your datasheet.