Which code snippet creates the layout shown, starting at <table> and ending at </table>?
<table>
</table>
<tr> <td>Table cell 1</td> <td>Table cell 2</td> </tr> <tr> <td>Table cell 3</td> </tr>
<tr> <td>Table cell 1</td> <td>Table cell 2</td> <td>Table cell 3</td> </tr>
<tr> <td>Table cell 1</td> <td>Table cell 2</td> </tr> <tr> <td rowspan="2">Table cell 3</td> </tr>
<tr> <td>Table cell 1</td> <td>Table cell 2</td> </tr> <tr> <td colspan="2">Table cell 3</td> </tr>
