单选题：‏以下程序运行后的输出结果是‏‏#includeintmain(){inta;intc=;floatf=.;doublex;a=f/=c*=(x=.);printf(“%d，%d，%.f，%.fn”，a，c，f，x);return;}‏A，，.，.B，，，.C，，.，.D，，.，.