echo quey result with single field

echo quey result with single field

Please help. I need to print result of this query but nothing appears
$fetch_a = "SELECT programs.Program_Description FROM programs WHERE
programs.Programid = ('SELECT memberprogram.Programid FROM memberprogram
WHERE memberprogram.Memberid = $Memberid && memberprogram.Option_No =
'Option A'')";
$result_a = mysqli_query($dbc, $fetch_a);
echo $result_a;