It is not impossible       _the important work on time.   [ ]

A. for he to finish    

B. for him to finish    

C. that him finish

D. he to finish

下列程序的输出结果是______。 #include＜stdio.h＞ main() { int a=2,b=-1,c=2；if(a＜b) if(b＜0)c=0； else c++；printf("%d\n",c)； }