根据已给出的运行时数据的输入和输出形式,判断正确的输入输出语句应是 int main( ) { int x; float y; printf("enter x,y:"); 输入语句; 输出语句; return 0; } 输出为:2□3.4 输出为:x+y=5.40 A. scanf( "%d, %f", &x, &y);printf("\nx+y=%4.2d",x+y); B. scanf("%d%f", &x, &y);printf("\nx+y=%4.2f", x+y); C. scanf("%d%f", &x, &y):;printf("\nx+y=6.1f",x=y); D. scanf(%d%3. 1f", &x, &y); printf("\nx+y=%4.2f", x+y);