Untitled

Radio Buttons not mutually exclusive : HTML [closed]
<!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>