What will be the output of the following PHP code ? <?php $a = "1"; $a = 1; $b = 1; switch($a) { case $a * $b: print "hi"; break; case $a / $b: print "hello"; break; default: print "hi1"; } ?>

• A. Hihellohi1
• B. Hi
• C. Hihello
• D. Hi1