Explanation:
To increase the column width in HTML, we can use the "colspan" attribute. This attribute specifies the number of columns a cell should span. By increasing the value of "colspan", we can increase the width of the column.
Correct Answer:
C:

Understanding Column Width in Tables
When working with HTML tables, adjusting the column width can be crucial for better presentation and readability. The options provided include cellspacing, cellpadding, row span, and col span. Let's explore why option 'C', col span, is the correct answer.
What is Col Span?
- Definition: The `colspan` attribute is used in HTML to specify how many columns a cell should span across.
- Usage: By using `colspan`, you can merge multiple columns into a single cell, effectively increasing the visual width of that cell. This can create more space for content within that specific area of the table.
Explaining Other Options
- Cellspacing:
- Refers to the space between cells in a table.
- It does not directly affect the width of columns but rather the space around them.
- Cellpadding:
- Defines the space between the cell's content and its border.
- While it increases the internal space within a cell, it does not change the overall column width.
- Row Span:
- The `rowspan` attribute allows a cell to span multiple rows.
- It affects vertical merging but does not adjust the width of a column.
Conclusion
In summary, to increase the width of a column in an HTML table, the `colspan` attribute is essential as it merges multiple columns into one, thus enhancing the visual layout. The other options, while useful for spacing and layout, do not directly increase column width.