A single column in a table. An <apex:column> component must always be a child of an
<apex:dataTable> or <apex:pageBlockTable> component.
Note that if you specify an sObject field as the value attribute for an <apex:column>, the
associated label for that field is used as the column header by default. To override this behavior,
use the headerValue attribute on the column, or the column’s header facet.

A.
apex:inputField

B.
apex:column

C.
apex:inputText

D.
apex:insert