function clearA($param = null)
{
$checking = $this->paramChecking($param);
$data = new FormData($param['u'], $param['uid']);
$data->clearPartAEntry($param['qid']);
$data->updateData("part_a_overall_score", NULL);
$data->updateData("part_a_total", NULL);
$data->updateData("part_a_b_total", NULL);
}