Which type of elements does the 'tbody' tag include in a table?

• A. Only column names
• B. Only row headers
• C. All data rows
• D. None of the above

Answer: (C)

The 'tbody' tag in an HTML table is specifically designed to group together the body content of the table, which includes all the data rows. This means that when you use the 'tbody' tag, you are encapsulating all data rows that display the core content of the table, excluding headers and footers that may be defined separately within 'thead' and 'tfoot' tags, respectively.

By using the 'tbody' tag, you can enhance the structure and organization of your HTML table, allowing for clearer distinction between the table's header, body, and footer sections. This helps not only in rendering but also in styling and scripting, as you can apply styles and behaviors directly to the body of the table without affecting the header or footer.

The other options do not accurately represent the function of the 'tbody' tag. For example, the tag does not contain only column names or row headers, which are handled by the 'thead' tag, nor does it exclude all types of content, making "none of the above" inaccurate as well. Thus, the inclusion of all data rows as the main function of 'tbody' clarifies its role in the table structure.