单项选择题

以下选项中,正确的if-else语句是 ( )

A.if(x!=0) printf("%d", else printf("%d",-;
B.if(x!=0) { x=x+y;printf("%d",;} else printf("%d",-;
C.if(x!=0) x=x+y;printf("%d",; else printf("%d",-;
D.if(x!=0) { x=x+y;printf("%d",}; else printf("%d",-;