给定下面的类定义Class Base{ Public Void Say(){ System.out.println("base"); } }Public Class Say Extends Base{ Public Static Void Main(string Argv]){ Say S = New Say(); S.say(); } }下面在类say中使用哪一个方法将会编译并使程序打印出字符串"hello"？( )
选项：

A:public int say(){ System.out.println("Hello");}
B:public void say(long l){ System.out.println("Hello");}
C:public void say(){ System.out.println("Hello");}
D:public void say(void){ System.out.println("Hello");}