What change must be made to the class for the code to work as written?

Consider the following code.

What change must be made to the class for the code to work as written?

class Magic {

}

protected $v = array("a" => 1, "b" => 2, "c" => 3);

public function _get($v) {

return $th is->v[$v ];

$m = new Magic();

$m->d[] = 4;

echo $m->d[O];
A . Nothing, this code works just fine.
B . Add _set method doing $this->v[$var] = $val
C . Rewrite _get as: public function _get(&$v)
D . Rewrite _get as: public function &_get($v)
E . Make __get method static

View Answer

Answer: D