单击“提交”后，从mysqli查询中获取更多数据

I'm running this code.

while ($row = mysqli_fetch_array($result)) {
    $qID = $row['question_id'];
    $a = $row['answerA'];
    $b = $row['answerB'];
    $c = $row['answerC'];
    $d = $row['answerD'];
    $rA = $row['rightAnswer'];
    echo "QID: " . $row["question_id"]. "<br>".
    "Question Type: " . $row["questionType"]. "<br><br>" .
    "Question: " . $row["question"]. "<br><br><br>";
    echo "<input type = 'Radio' Name = 'Answer[$qID]' value ='A' > A.  $a &nbsp;&nbsp;<br>";
    echo "<input type = 'Radio' Name = 'Answer[$qID]' value ='B' > B.  $b &nbsp;&nbsp;<br>";
    echo "<input type = 'Radio' Name = 'Answer[$qID]' value ='C' > C.  $c &nbsp;&nbsp;<br>";
    echo "<input type = 'Radio' Name = 'Answer[$qID]' value ='D' > D.  $d &nbsp;&nbsp;<br><br>";
    echo "<input name='submit' type='submit' value='Submit'><br><br>";
    if(isset($_POST['Submit'])) {
        echo "Right Answer: " .$row["rightAnswer"]. "<br><hr>";
    }

When I navigate to the page, the data from the last line is already displayed.

How do I get it so that when the user clicks submit, it displays "Right Answer: " instead of displaying it as soon as they navigate to the webpage?

I know my radio buttons are essentially useless at this point. That's for another time, I at least want to try and figure that one out.

Here's an example of what is displayed.