[C语言 P2030] 以下能够实现计算 5！的程序段是 A)int fac=1,k=0; do{ k++; fac*=k;

以下能够实现计算 5！的程序段是
A)int fac=1,k=0;
do{ k++; fac*=k;} while(k<5);
B)int fac=0,k=1;
do{ fac*=k; k++;} while(k<5);
C)int fac=1,k=1;
do{ k++; fac*=k;} while(k<=5);
D)int fac=1,k=0;
do{ fac*=k; k++;} while(k<5);