Radio Buttons not mutually exclusive : HTML
I have the following simple form set up. My problem is that for some reason my two radio buttons are not mutually exclusive. You can select both simultaneously. From everything I have been able to find online, it should be as simple as what I have, but it's still not working. Anyone have a solution? Thanks!

    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
    
    <html xmlns="http://www.w3.org/1999/xhtml">
    <head>
        <title></title>
    </head>
    <body>
        <div>
        <form>
            First name: <input type="text" name="firstname" /><br />
            Subscribe? <input type="checkbox" name="subscribe" /><br />
            FedEx! <input type="radio" name="deliveryoption" /><br />
            DHL! <input type="radio" name="deliveryoption" /><br />
            <input type="submit" name="submit" value="Send Data" />
        </form>
        </div>
    </body>
    </html>


Radio Buttons not mutually exclusive : HTML
===

I have the following simple form set up. My problem is that for some reason my two radio buttons are not mutually exclusive. You can select both simultaneously. From everything I have been able to find online, it should be as simple as what I have, but it's still not working. Anyone have a solution? Thanks!

    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
    
    <html xmlns="http://www.w3.org/1999/xhtml">
    <head>
        <title></title>
    </head>
    <body>
        <div>
        <form>
            First name: <input type="text" name="firstname" /><br />
            Subscribe? <input type="checkbox" name="subscribe" /><br />
            FedEx! <input type="radio" name="deliveryoption" /><br />
            DHL! <input type="radio" name="deliveryoption" /><br />
            <input type="submit" name="submit" value="Send Data" />
        </form>
        </div>
    </body>
    </html>

