What is the output of the following code? <?php function format(&$item) { $item = strtoupper($item) . '.'; return $item; } $shopping = array("fish", "bread", "eggs", "jelly", "apples"); array_walk($shopping, "format"); $shopping = sort($shopping); echo $shopping[1]; A "BREAD." B nothing (no output) C "apples" D "fish" E "APPLES."