Which line of code can be used to replace the INSERT comment in order to output "hello"?
class C {
public $ello = ‘ello’;
public $c;
public $m;
function __construct($y) {
$this->c = static function($f) {
// INSERT LINE OF CODE HERE };
$this->m = function() {
return "h";
};
}
}
$x = new C("h");
$f = $x->c;
echo $f($x->m);
A. return $this->m() . "ello";
B. return $f() . "ello";
C. return "h". $this->ello;
D. return $y . "ello";
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