阅读下列利用递归来求n!的程序。&nBsp;
ClAss FACtoriAltEst{&nBsp;
stAtiC long FACtoriAl(int n){／／定义FACtoriAl()方法&nBsp;
iF(n= =1)
rEturn l；&nBsp;
ElsE
rEturn n*FACtoriAl{ }；&nBsp;
}
puBliC stAtiC voiD mAin{string A[]}{
／／mAin()方法&nBsp;
int n=8：&nBsp;
systEm．out．println{n+"!="+FACtoriAl
(n)}；&nBsp;
}
}
为保证程序正确运行，在下画线处应该填入的参数是(&nBsp;&nBsp;&nBsp;&nBsp;&nBsp; )。&nBsp;
A．n-1&nBsp;
B．n-2
C．n&nBsp;
D．以上都不是&nBsp; &nBsp;