分析以下代码, class Animal { final function shout(){ echo 'parent'; } } class Dog extends Animal { public function shout(){ echo 'son'; } } $dog=new Dog(); $dog->shout(); 判断下面说法正确的是( )。
【简答题】Why does Gwen not take any vitamins?A. Shebelieves they are not cheap enoughB. Shethinks she does not need themC. Shehates taking them.D. Shedoes not know which ones to take