【C201050】以下代码运行结果为（  ）。

<?php

$A = “PHPlinux”;

$B = “PHPLinux”;

$C = strstr($A,”L”);

$D = stristr($B,”l”);

echo $C .” is “. $D;

?>

• A.PHP is Linux

• B.is Linux

• C.PHP is inux

• D.PHP is