Which tag is used to define a table header cell?

Which tag is used to define a table header cell?

• A. <td>
• B. <thead>
• C. <th>
• D. <tr>

Answer: (C)

Defining header information in a table uses a specific semantic element. The tag for a header cell is the one that signals this cell contains header data, not regular data. Using this tag helps browsers and assistive technologies understand the table structure, so they can present it in a more meaningful way to users. By default, header cells render in bold and are typically centered, distinguishing them from regular data cells. In contrast, a data cell is defined by a different tag, a row is just a container for cells, and a grouping element like a thead organizes header rows but does not itself define a header cell. So the best choice is the header cell tag, which both conveys meaning and improves accessibility. If you need to indicate a header for a specific column or row, you can add scope attributes like scope="col" or scope="row" to these header cells.

Defining header information in a table uses a specific semantic element. The tag for a header cell is the one that signals this cell contains header data, not regular data. Using this tag helps browsers and assistive technologies understand the table structure, so they can present it in a more meaningful way to users. By default, header cells render in bold and are typically centered, distinguishing them from regular data cells. In contrast, a data cell is defined by a different tag, a row is just a container for cells, and a grouping element like a thead organizes header rows but does not itself define a header cell. So the best choice is the header cell tag, which both conveys meaning and improves accessibility. If you need to indicate a header for a specific column or row, you can add scope attributes like scope="col" or scope="row" to these header cells.