Select all the correct options for merging cells in tables.
A)
<table border="1">
<tr>
<th>Name</th>
<th col="2">Email</th>
</tr>
<tr>
<td>John Doe</td>
<td>[email protected]</td>
<td>[email protected]</td>
</tr>
</table>
B)
<table border="1">
<tr>
<th>Name</th>
<th colspan="2">Email</th>
</tr>
<tr>
<td>John Doe</td>
<td>[email protected]</td>
<td>[email protected]</td>
</tr>
</table>
C)
<table>
<tr>
<th>Name</th>
<th>Email</th>
</tr>
<tr>
<td rowspan="2">John Doe</td>
<td>[email protected]</td>
</tr>
<tr>
<td>[email protected]</td>
</tr>
</table>
D)
<table border="1">
<tr>
<th>Name</th>
<th>Email</th>
</tr>
<tr>
<td row="2">John Doe</td>
<td>[email protected]</td>
</tr>
<tr>
<td>[email protected]</td>
</tr>
</table>