运行下面这段代码,将( ) static void Main(string[] args) { int mile = 0; Run(mile); Console.WriteLine(mile); Console.ReadLine(); } private static void Run( ref int mile) { mile = mile + 80; Console.WriteLine(mile); } A. 输出:800 0 B. 输出:800 800 C. 输出:0 800 D. 编译出错