有两个整型变量dog和cat,若要从磁盘文件把数据读到其中,正确的形式是______

A.fscanf(dog ,2,1,fp);
B.fscanf(fp,"%d%d",&dog ,&cat);
C.fscanf(dog ,cat,2,1,fp);
D.fscanf(fp,"%d",&dog ,&cat);