In MS Excel 2010, a cell may display '______' if that cell contains a number or a date and the width of its column cannot display all the characters that its format requires.

Correct option is A

In MS Excel 2010, when a cell contains a number or a date, and the column width is not wide enough to display the entire value based on the cell's format, Excel displays a series of "#####". This indicates that the content cannot fit in the cell and is being truncated due to insufficient column width.
· The "#####" symbol serves as a visual cue that the cell's contents are too large for the current column width.
Important Key Points:
1. Column Width: If the content (such as a large number or a date) cannot fit within the current column width, Excel will display "#####".
2. Adjusting Column Width: To resolve this issue, you can either increase the column width manually by dragging the column boundary or double-click on the column header to auto-adjust the width to fit the content.
Knowledge Booster:
· Dates and Numbers: Excel uses specific formatting for numbers and dates, and when these are too long for the column width, the ##### symbol appears, showing that the data needs more space.
· AutoFit: The AutoFit feature in Excel can automatically adjust the column width to fit the longest content in the column. You can double-click the boundary of the column header to use this feature.