You are developing an ASP.NET web page that includes a textbox control that has ID txtDate. You
need to ensure that the user enters a valid date in the text box. Which markup should you use?

A.
<asp:CompareValidator ID=”valDate” runat=”server”
Type=”Date” ControlToCompare=”txtDate”
Operator=”Equal”/>

B.
<asp:CompareValidator ID=”valDate” runat=”server”
Type=”Date” ControlToCompare=”txtDate”
Operator=”DataTypeCheck”/>

C.
<asp:CompareValidator ID=”valDate” runat=”server”
Type=”Date” ControlToValidate=”txtDate”
Operator=”DataTypeCheck”/>

D.
<asp:CompareValidator ID=”valDate” runat=”server”
Type=”Date” ControlToValidate=”txtDate”
Operator=”Equal”/>